My RV days started out with the VW 'camper' - - way back. Then, as family arrived, grew and changed, I found myself needing a 'mobile' office and living space. In the early 90s I bought a Sunrader on the Toyota pick-up base - - traveled and work all over the US - - about 16mpg, no Toyota problems at all. Then I tried to kinda settle down but in a moment of weakness I sprung for a basket-case Vixen-TD that kept me continually fixen and never getting ahead of the next problem.
Dear wife said "no more" - - - so I looked and studied the alternatives. After many months I found an almost new 2010 Quest 24J - - We've found it very accommodating to our life style; I've hung a light weight motorcycle lift off the back and usually carry my bike as a 'dingy'. Big enough for the two of us.
We recently got back from our first long trip: about 3K and lots of 'weather' as we traveled and camped - - minimal us of the bike but the rig is meeting all our needs. Some additions and some changes but nothing earth shaking. High mps was 17; low was 15 - - now we're looking forward to the western adventure toward the middle of June.
Two good ways, I've used successfully. (1) eBay - take good pictures, field a few questions, and set a reasonable 'bottom' price for the auction (2) Craig's List: again, a good description of the rig and the toad, good pictures, and DO NOT list your name or return phone. Say to 'email me and I'll get back to you' - - that eliminates all the scams, crap, etc. Craig's List is good if you are good at the details. No,it's not just locals either, there are nation Craig's List search engines that will get you responses from all over.