I'm gonna take a while to re-introduce loading but half squats/RDL's would probably be a good place to start once it feels okay again. Good tips though, wouldn't have thought to just reduce ROM. In other words, I'm dumb. 
lool
i'll try to video tape you this double leg hamstring iso that you could probably do, it actually kills me it's good shit..
description:
- lying down supine, put a small bend in both knees (very small), dorsi flex, squeeze glutes to extend hips off the ground a little..
- you'll be on your heels
- should really feel it in hamstrings, a small bit in low back but it goes away after, never had problems for it
- iso it for time.
You can do that same kind of thing with feet on say an 18" surface (chair) but legs completely locked, that's more of a double leg - stiff leg hip extension.. could rep those or iso it.
I'd imagine single/double leg glute bridges wouldn't feel to bad on the ankle..
And finally you have prone 90 degree glute..
So there you have 5 things:
- double leg hamstring iso
- double stiff leg hip extension (iso or rep out)
- double leg glute bridges (iso or rep out)
- single leg glute bridges (iso or rep out)
- prone glute (rep out)
hope that helps.. it's better than nothing.. could also probably do hamstring curls at the gym but i dno.
peace!
Today:
warm up
none
work
circuit x3 of
pushups x20
crunches x40
L plank x30s
R plank x30s
leg lowers x10
cool down
full body stretch
foam roll upper legs