Great thread. We actually fall within your demographic and found ourselves in the position of wanting an off-road capable rig. After owning everything from ground tents, RTT, bumper pull, Class C and Truck Camper (No fifth wheel due not being able to go off road) We've learned a lot of lessons on and off the road and wanted some very specific features and capabilities. 4wd, less then 20 ft in length, class C walk thru cab design, US chassis, aluminum/fiberglass construction, interior wetbath (if your traveling with lady, this is critical sooner or later....) and normal amenities (stove, hot water, heat and storage) we looked at all the new rigs on the market and quickly determined their biggest issue was price and the reality of banging around on the trails in a $160k rig would get old very quickly. And for our demographic, the single biggest issue is paying it off, no debt. So, we choose to track down an older camper and restore it. We found a 1995 Provan Tiger on a K2500 4wd Chevy chassis. We lightened the interior and components, added a 3 inch suspension lift, had the mechanics completely redone. We've already covered about 15 states and countless off-road and forest road destinations. Will it do the metal masher, no. But it has no problems with the vast number of easy trails that get you into the back country. Also, I'd say 4wd is necessary on these types of rigs. Not so much for mud bogging, but to reduce the stress loads when tackling steep and rocky trails. I guess in the end your business idea has to bring together a vast array of complex issues other then price. Good luck!