Doug,
I may sell my unfinished custom motorhome sometime this year. It is built on a 2002 Volvo with Cummins 450 HP ISX. The motorhome (on extended chassis rails) is 45 feet O.A. length.
Insulated throughout with two inch thick extruded polystyrene, even the storage compartments. No propane on board. Heat is from Hydro-hot diesel fired furnace which heats water for domestic use as well as the three zones of heat exchangers in the salon and the garage. The garage has space for three motorcycles and when they are raised, a small car under the bikes. Three A/C units on the roof will cool the living space in Death Valley when you run the 10.50 Kilowatt generator.
Merlin Libby
merlinlib@aol.com