Need some help with Brake issues

Sounds like you're on track with the brake pressure.
I have had luck with bleeding MCs while bolted to the car, with lines attached. Just by loosening the fittings then retightening before releasing the pedal.
After that's done a few times, worked my way to the rear bleeders.
2 issues with that procedure is
You need a helper to press the pedal.
Older brake fluids eat paint!