Any motorhome is going to require a good bit of maintenance, not just to the chassis (that's probably the least maintenance intensive part) but to keeping up with caulking, cleaning, odd minor repairs, battery maintenance, and a host of other little things. Some are better than others, but all require more or less attention.
The V10 is a good, reliable, capable engine, but does rev high to produce its power and does consume a fair bit of fuel. Offhand, the other alternatives I can think of for small class C's are based on the equivalent Chevy van chassis (with the GM V8), a Ford Transit chassis, or--for very small units--a Ram ProMaster. The Promaster has limited carrying capacity in comparison to the other alternatives, so pay close attention to weight limits when looking at any of them; some are pretty close to being fully loaded with no water and no belongings and no passengers.
