I just bought a used class C. 2007 Fleetwood 26Q, bought a babied unit that was privately owned. Bought it through a trusted dealer who had it on consignment The rental sales were higher priced then I paid, had more miles and had been through the mill. This unit was well equipped, 20k miles, 21 hours on gen. Still had the orig window sticker and all service maintenance records.
I have been at campgrounds and have seen unspeakable things done by renters like flushing out the sewer hose with the white hose. At the minmum I would change out the fresh water tank and all water lines.
There are good deals out there, better then buying a used rental. you just need to look and negotiate
