Hey if you can weld and build things you can make your own!! I bought a used 28 foot 5th wheel camper that had 2 bed rooms. One of the bedrooms was in the tail of the camper, just what I needed. I cut out the back wall framed it in and made a fold down door that is used as a ramp. I put in an over head garage door spring bar to help lift the door and made the back bedroom into a garage for the bikes! Now the camper is like this... Over the bed of the truck is our bedroom with King size bed. Full bathroom tub with shower, full kitchen, stove, oven, fridge with freezer.. Back bedroom now garage... With a little work on springs the camper handles the weight with out problems and tows great down the road I have been up to 75mph with no problems. A very nice way to go the bikes are safe and clean out of the weather. The fun part is at the camp grounds when you pull in. No big deal no looks untill to put the back door down them out with the busa and bandit... Now the people look and they love it... By the way.. total cost for me to buy the camper and build it is around $6000. and I redid the inside walls and carpet and ceiling. I also extended the floor of the back room making the camper 30 feet long.