Ok, so I lied to myself. I chilled for a little bit, had a cup of coffee and decided to do some more work. Ended up re-installing the other head, intake manifold, PCV system, and one set of rocker arms. This time I really am kaput.
Maybe I won’t crash all night and can get up and wrap this thing up. Just need to install the other set of rockers, make sure the engine turns over by hand with no obvious issues, put in the UD pulley, water pump and radiator then see if it will start without blowing the motor up.