Well, it'd have to be an Freightliner Argosy COE with 63" day cab, 102" condo and a 26' box + liftgate (if my math adds right).
High bunk one side, with pull-out sleeper/couch below. Toilet, sink, micro, NovaKool 4.3 CuFt refrig., ample storage, KVH tracvision satellite w/ internet, SONY Sony...