Dangans. Sounds like you are gtg with a plan, sweet so I'll share my experience with the trt. I wasn't that much different than you with regards to T levels as well sleep apnea. Started trt about two years ago (topical Androgel) at first with meh results. Stayed on top of my labs and together we dialed it in to weekly at home injections (test C 200mg) and an AI to keep my estrogen levels from climbing. Currently sitting at 787, 31 free, estradiol at 12.7. feeling 100% better with some returned swagger in my step so to speak. The sleep apnea was confirmed and now I use the c pap at night.
Do your blast and pct then really pay attention to what your body is telling you. It takes some trial and error to get dialed in but the quality of life will be there when you find YOUR sweet spot. The efforts will be WELL worth it brother. Best of luck on your blast!