This was my old truck camper, an 89 Sunline 750C made for a Ford Ranger Pickup. I made up a 2x6 ladder frame to support the floor and lift it up high enough to get over the cab and bedrails.
This pic shows it on my 02 GMC Sierra 1500 long bed, nice part was the bed is 8' and the camper was 7'6" so I could leave the tailgate on and use it as a porch or table to cook off of when necessary.
Only thing I had to do was modify the three jack system, the old jacks had tripod feet, and had to make a different jack foot for the passenger side jack to clear the truck's rear tire.
Flyfishing New England and eventually the World
2002 GMC Sierra 1500 2WD 4.3L Automatic
2010 KZ Sportsman Classic 19BH Travel Trailer
2012 Harley Davidson XL883N