Ok here is my deal on this. I have purchased a 2001 Dutchmen 801d. It did not have ac when I purchased. Figured I could get the old lady out a little more with the ac unit. So I started checking prices and found new unit with the dealer installing would run me about $800 about $150 for the install and about $650 for the unit so I being the tight ass that I am started searching craigslist. So I come across a deal. Carrier air v 13500 btu unit with heat not working but good air. Went and looked at it and ran it. Has great ac and I think the heat problem is heat strip or limit that can kick heat strip out. Even if the heat never works I got a furnance so that is no big issue. I bought it for hundred bucks. My big thing now is getting it put on mine. I'm pretty mechanically inclined but the last thing I wanna do is mess the integrity of my roof up in any way. Dealer is gonna charge $150 if they install it. My question is have any of you installed these on pup before and if so how big of a job is it and how big of a risk is there for leakage afterward. I would sure like to be able to pull this whole ac unit installation of for $100. But if I have to I could fork over the extra buck n a half. $250 still ain't a bad price.