Thats great man, good luck with school, keep your priorities straight and have fun.
An upper -lower -rest- upper-lower- rest-rest split is as "split" as you need to go. When you do vertical push/vertical pull on one day, and hor push/hor pull on the other, youre hitting every muscle group twice a week anyway you do it. If you use standing press on one day, with pull ups, and "arms" assistance, then some type of bench press on the other, with rows, and "shoulder" assistance, you can easily get everything you need in to progress, and progress optimally. You NEED to do legs twice a week regardless if you want to progress well, squat on one and dead on the other w knee dominant exercise as assistance, or squat twice with rdl assistance after.
Start lower with the rest paused weight so that you can progress for a longer period of time, adding weight each week. The most important thing is that you hit the exercises you have hard and focused, not doing a shit load of exercises. Once youve maximally stimulated a muscle group, its done, other fluff shit only makes recovery take longer. Good luck with it, if you need more help setting it up or want to post a template off that do so and Ill help you tweak it.
Keep your protein HIGH, log it daily or you wont get nearly what you need.