Earlier in the thread, some voiced concern about the mold stains on the plywood. I’ve decided it all needs to come down for power wiring. I probably will replace it with some cheap paneling, maybe over foam insulation board for a little additional help.
I’ve pretty much decided on a suspended drop ceiling. Have y’all seen the simulated tin drop in ceiling tiles? The FEBT used them in the Robertsdale museum. They are pretty cool. They also make rusty corrugated metal panels. They are cool too, but cutting to fit is much more work.