I ran and hooked up the A/C lines and the heater hoses. There's no decent heater hose diagram in the FSM for Charger/Coronet/Satellite with big block and A/C. So, I don't know if it's right or not. I also reinstalled the brake hardlines/distribution valve/master cylinder. I was working alone so had to improvise to hold up the MC while I went under the dash to install the washers and nuts.
The horn button wasn't seating all the way into the wheel and the retaining ring was holding the button down. Just needed to walk away for a bit and come back with a fresh outlook. It was a gut check connecting the battery. But, I didn't let the smoke out.