red clay rambler, the only thing i was thinking with a custom box is making something like a tripac cover.. BUT making it out of the mesh steel. easy to gas start and what not. i was kinda set on a tripac, but i did some reading and some say that its not enough to keep it cool in the summer. so if thats the case why spend all the money? please i'm not trying to knock the tripac but its from what i read. anyway, the way i see it you can get this going for about $3000.
another thing RCR, there is a video online on how to use auxiliary tanks. however i do remember reading there is only so much gas aloud on the truck.. i could have read wrong though. as far as the exhaust goes, i saw a w900 with a tripac, he had made a smaller stack taht went along side the trucks exhaust. i thought it was a great idea.
i also thought about a roof top BUT on a columbia (witch i might get.. if i ever find decent work ) it wont work. a midroof yes.. but i plan on running team. anyway, another thing i saw surfing youtube is a small apu company that basically doing what i'm talking about but with a diesel generator. they're running a ac unit like this (similar anyway)
SINGLE ZONE 20 SEER 18000 BTU HEAT PUMP SYSTEM 18KHS72 .i dont know how that would work though...