So I had an idea which some on here have already done. Buy a short bus (aka F450 or similar), remove all the rivets and pull the rear cap off, cut off the appropriate amount of body to shorten it, and replace the rear cap. Finish the inside with nice captains chairs, seats, etc for comfort. Build a bed on the back or install a dually pickup bed, and put in a 5th wheel hitch. All could be performed for a fraction of the cost of a stock F450 truck with the same comfort and towing capacity. Then use said truck to haul a 5th wheel camper.
After my brilliant idea I did some quick square rooting in my head and determined that for the cost of the F450 build (let's estimate $7k total) + the cost of a used 5th wheel camper (let's go with $25k), you would be much better off (and less cost) by purchasing a regular skoolie and converting it to an RV, and have lots of money left to use for traveling.
So much for my "aha" moment!