I suspect you will really run into storage space problems right off the start especially after having the bigger TT and 5th wheel trailers.
I have always wanted to have the Truck Camper to go with my style of OFF-ROAD camping but the loss of storage space always turned me against getting one...
I am quite sure if I owned one I would be also pulling an enclosed utility trailer behind it. With my present OFF-ROAD POPUP trailer setup I have some serious room on the front deck of my trailer setup and the truck's supercab back seat area and covered truck bed... We can carry some serious supplies with this setup...
You will probably want duallys with the larger and heavier campers...
Roy Ken