As you know we have a slide on camper for our Defender. These usually come with detachable wind-up legs which are quite awkward to operate. I decided to instead suspend the camper on this crane arrangement in the old dairy for easy installation/removal. In addition, I bolted some 4”x4”s to the floor so that the truck would be forced into exactly the right position when I wanted to place the camper on it, then it is a quick and simple matter to bolt it to the deck. The yellow things are the crane controllers. A couple of minutes and we are off on our next trip . See you!
Camper suspended above tray height. There is a crane (red above) at each of four corners.
The camper is connected to the crane with eye bolts and chain.
Detail from above.
This is quite a simple arrangement and really makes it enormously easier to fit the camper to the truck. I recommend you do something similar. I bought these cranes from eBay for about $150 each.