I saw one that was built using the cab from a fire truck. The details are hazy, but it was interesting. My concerns would include the inability to access the living quarters while under way and the extra work involved in adding basement storage. Your space is limited in even the largest sleeper, and then once parked that becomes virtually unused space....Jim
Spec. out a truck chassis. Till you do that convert it after body outfit installs a shell, you are talking serious bucks. Might as well buy a converted couple year old Prevost. Lot of money just to travel some. And you need a decent toad for trips off the interstate to visit attractions in cities or grocery shopping and laundry, etc. To most of us, owning an older bus conversion is more of a hobby and traveling is the justification to spending so much money on it.I get a kick out of owners of top end models fretting about water spots on the stainless.