hmm well im trying to get around having an exhaust and intake for the cab....I was hoping I could use a/c to keep temps and humidity in check Im going to pick up a free used window a/c and see if I can convert it into a true sealed split system via cardboard and spray foam insulation since the only connection shared by both sides is the refrigerant line.

I keep picturing if I were to go the exhaust route that the fans wouldnt stay off for more than 5min effectively wasting huge amounts of co2.