Okay, the awesome and ALWAYS helpful POCA forum consensus is to ditch the iron and go aluminum, given the cost of what the iron heads need. A set of Cleveland Trick Flow 190cc heads runs $1850, assembled with nice valves. They might need better retainers & springs to match the chosen cam according to my chosen engine rebuilder. I think there's around $1000 difference between the aluminum and the iron, by the time I sell the iron and intake and also purchase the EFI upper & lower intakes.
Heads:
Pitted Seats: (best picture- no macro lens)
The valves were in this condition when I pulled it apart: