I've been trying to solve the a/c dilemma for our 65 compact. I've come up with a "quick fix" to ac Stu. Found a roll around 18,000 btu ac unit at Goodwill for 50 bucks. I have it vented with a hose through the inside storage hatch and through the storage area and then have the exhaust hose come out the outside storage hatch. Stu is nice and cool!