[Oh Haha]

Talked to a mechanic neighbor today. He suggested bleeding it again after driving it around a bit.
We did and we now have consistent heat. He has a pressure testing tool at work he will bring home tomorrow and we'll check for leaks that may be minute.

Haynes manual doesn't have any info on bleeding the system anywhere I can find.

I'm cautiously optimistic and will keep my eye on things for now.

The thermostat was stuck closed which was the problem.