After reassembly I could not restart my MacBook using the power button or after SMC reset (shift-ctrl-option-pwr). I had to connect my MacBook to its charging cable to get the battery LED to re-illuminate. After that it was all normal.

I had basically this when doing a screen replacement (and the ZIF connector ribbon which basically crumbled to dust as I touched it). Including no sound, no light, no boot, no logos, I had a USB connected sound once when plugging it into my windows PC which i guess confirmed it wasnt totally fried, but I had left it plugged in to a few different chargers (not the 20w or whatever one since I read it could damage it if it was not powering normally. could be total BS) and had it sit from 15-30 minutes on each. all nearly no sign of life, though one re-disassembly showed the previously unlit power LED was on again. I went to let it sit on the officical charger overnight thinking it was dead, but it just randomly booted and is working fine now. TLDR be patient with apples BS.

Thank you, i finally got around to ordering some long torx to be able to disassemble this. Added some tape to the top bumpers to make them less stiff, and swapped the stick to a convex one. I hate screws under stickers lol.