Hi Bob,
More details, hmm I get it. So I am looking at using one to tow a fiver and carry a Jeep. I saw a pic of one the other day that was setup just like I envisioned but lost the web site. I forget the brand but it was blue over silver tandem rears with a custom bed to carry the jeep and it extended out a little to carry the fifth wheel hitch. I liked the lonestars sleeper most because of the couch that could become a bed or a dinette for two. Along with the mini fridge and the microwave wouldn't that qualify it as an RV? I have been reading some from the Meyers web site and from what I have read seems like an automatic tranny would work best. Also more than 400 hp and 1400lb ft of torque would work. As to the ride I wanted smooth but have read that while the Volvo's ride smooth they also tend to be very wishy washy in strong side winds or rough roads. As to the "build or buy" I am more in the "buy" camp but wouldn't mind being the organizer and getting it done at different shops if that would save money.
Thanks
Chris