Suggestion, take a trip to Canada, go to Fraserway RV, rent a Truck Camper, and see what you think.
Truck Campers are much more compact, manouevrable, easy to park, have queen sized bed, bathroom, large fridge, easier to store, capable for offroad adventures, not available for 5th Wheelers or Travel Trailers.
Get a north south bed, not an east west.
Do you want a wet bath or a dry bath?
Truck Campers with slideouts, that give much more space, generally require a dual rear wheel truck.
You could have the best of both worlds, buy a Truck Camper as well!
Check out a site called Truck Camper Magazine, for some very interesting information.
Good Luck