Good news. The Contractor removed and reinstalled my jambs pretty well. He managed to remove the door stops without marring them. Then again hid the fasteners behind them. The only issues are small ones. The top jamb has a small dip in the center and the right jamb also has a small dip in the center. I can easily pry those jambs out a bit and shim those dips out. The other small mistake is the left jamb. It's attached a bit proud of the sheet rock. Maybe a strong 1/16". Again, I can easily shim the left jamb from the wall, and use caulk to fill the small void.
Overall I'm pleased with what could have been a shitty job, out of plumb and full of nail holes. Kudos to the Contractor. He'll live to remodel again.
The floor at the opening is 1/4" out of level in that 40". That's kind of a lot, but entirely not their fault, and not that noticeable. I'll cut the doors angled 1/4" to follow the floor, which you'll never really notice and will give me a consistent 1/4" gap at the bottom of the doors.