Jake-
I've been thinking about that too- ever since spending a miserable night last 4th of July sweltering in the back of my truck under the shell! What type of A/C units are you looking at and how do you plan to power? I have a BIG slide in truck camper when the wife wants to go (rarely) but the shell is fine for me most of the time except when it's hot and no breeze.

Kirt