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First you can build a time machine and go back to last year when you had a 40'' vertical!!!! I mean....god damn. You were there!

Do you really need two dedicated UB sessions? Could just throw in some pullups, dips, heavy DB rows, bench press etc. on the squat day. If you insist on that then you could do this:

Sun - Squat 1 (morning)
Mon - HIIT 1 (morning)
Tue - UB 1 (lunch)
Wed - Jump 1 (lunch)
Thu - Squat 2 (morning)
Fri - HIIT 2 (morning)
Sat - Jump 2 followed by UB 2 anytime in the day when you fire best. This could be a ME session whereas the weekly jumps session could be <ME. This is assuming you don't have time restrictions on Saturday as you aren't at work; if you are, Jumps 2 in the morning and UB 2 at lunch.

Where are you doing the HIIT?

acole's plan looks reasonable. but why are you doing the HIIT? if you're trying to peak vert as fast as possible, why tire yourself out any more than necessary? HIIT isn't gonna make you jump higher in the short term.

Calories in vs calories out is what makes you lose weight. Not HIIT.

You can even lay in bed all day and lose weight, as long as you burn more calories than you eat (in this example your calories will be burned by just your metabolism/BMR).

For that reason, i would recommend to not do HIIT as LBSS said. You can jog, or do what i do and just walk a lot. Dont do whatever will get in the way of your strength gains too much. However, if you see some benefits in sprinting during HIIT (aside from "fat loss") then by all means still do some of it!

thanks to all who replied.
It is actually mu first time doing HIIT in Sprinting form.

I try to do HIIT with heartrate monitor doing buerpee lunge jump indoor, and my heart rate never got that high or i guess the intensity is never as HARDCORE as a 100m sprint style.

actually.. Both Adarq and Andy Nicholson (44 yrs dunker) suggested jump rope.  Boxer style speed rope.  (i did try to jump rope 2 times, but It would take some learning / coordination work to get good at speed rope jumping)

I thought speed rope jumping is more on the Cardio side.... so i never got serious about it.  However. the Hiit Sprint... the intensity, every Single Stride require full triple extension from Glute all the way down to the ground...

i thought that is the best explosive training.... as each stride is probably more loaded compare to any jump squat or olift i had done..
at least that is how it felt to my body...

no access to kettle ball, But i did try to do those hip thrust swing with 30 lbs dumbell before.
like i said..b4
nothing compare to Sprinting 100% effort the force output intensity.  (i guess it take much lesser skill or brain juice for coordination sake)

but i like what Kingfish said,  may be stair climbs in stadium will have similar if not BETTER result.

U know, It took me a few weeks to find the Perfect Safe place to do my 100m Sprint... as where i live is  crowded and people will pop up around the corner leading in to a Crash. 

(take me 15 min to walk to the parking lot (with only 1 entrance) so it must be safe to sprint.  )

But I believe there is a outdoor football field with spectator stance which i can do stay climb with
i will go site check tonight

this is good progress, thanks for the suggest from everybody.

Calories in vs calories out is what makes you lose weight. Not HIIT.

You can even lay in bed all day and lose weight, as long as you burn more calories than you eat (in this example your calories will be burned by just your metabolism/BMR).

For that reason, i would recommend to not do HIIT as LBSS said. You can jog, or do what i do and just walk a lot. Dont do whatever will get in the way of your strength gains too much. However, if you see some benefits in sprinting during HIIT (aside from "fat loss") then by all means still do some of it!

This has been discussed before but calories in calories out is about weight loss - NOT LEANING out.

Most people cannot lay in bed all day and get sufficiently lean.  If you double digit bodyfat - sure you don't need to do any system work to get leaner.  But the leaner you get the harder it is to continue to lean out (lose fat while preserving muscle/strength) without system work.  There is some individual variation and it's a lot harder for women than men - female sprinters have to do tempo work to get adequately lean to perform in the sprints while some men get away with much less. 

But don't fool yourself into thinking you can peak your athleticism without system work - there is a reason that bodybuilders (essentially the experts in body composition) perform cardio work.  Despite its negative affects on muscle building, despite being on tons of steroids, no bodybuilders can achieve precontest leanness without cardio - sitting in bed all day long at a caloric deficit wouldn't make an already lean bodybuilder lose any fat. 

Scooby is already lean. It's not gonna be easy for him. 

Your questions are a little fragmented and all over the place so I think it's best you stick with facts and focus on your goals when you do your programming, here's the key points where your understanding is perhaps incomplete and where you should focus on your program design:

1) Weight/Fat Loss.  First of all - do you even need to achieve more weight loss or is 165-170 weight range sufficiently light to maximize your jump performance?   This is something you have to figure out - the only way to know for sure is to lose weight slowly until performance suffers - right before this point is when you are the ideal weight.  This is highly individual and involves a lot endocrinology and morphological variation.  One piece of advice to keep in mind is to not dogmatically stick to any recommendation about bw - even one given to you by Kadour Ziani.  KZ is obviously a great leaper but he is also a single leg jumper with a traditional North African body type - short torso and very long lean legs.  You have a long torso, short legs and jump off two feet.  In general your body type will be heavier at the same level of leanness.  Don't use this as an excuse to be fat but keep it in mind. 

1b). If you do decide to lose weight - realize that you have already done the easy part.  You are already lean.  There isn't much more you are gonna get from losing additional weight - but then again the last inch or two can be what makes your dunk happen.  At your leanness levels some type of system work will be paramount to weight loss.  I like your idea of using your active recovery to kill two birds with one stone and speed up weight loss while recovering.  Slow steady state cardio isn't bad but I would mix in some more tempo work as well.  Just remember that if you are using running to recovery to stay off flat hard surfaces if possible.  Try to find a soft surface or at least a hill to keep shock down. 

2) Upper body.  Here is my only strong recommendation for you.  Drop the upper body day.  In fact drop the the "lower body day".  I don't know what your training split it as far as weight training but in general you need to drop the body part split.  This isn't to say you are precluded from upper body lifts or training completely.  IMO aside from core work you don't need to do much upper body training for vertical jump performance BUT if your coaches suggest pull-ups or push press or some upper body movements you can include them in your training but they don't need their own day.  You can do 3 lower body movements and one core and upper body movement when you train - you certainly don't need an upper body day.

3) Jump.  Finally, you need to always remember that you are a jumping athlete now.  Understand that the bulk of your energy needs to be put toward jumps.  Jumps w various steps, surfaces, weighted, unweighted, resisted, etc.  Also to dunk you must start practicing spending a great deal of time w a basketball!