@Travis Ah, I see. Very clever, thank you! Do you use a mini crane to get the bed on top of the frame?
@Dan B Yes, I like that a lot! What do you think about using solenoid version of those quick release pins? So there would not be any manual effort. You would energize it and it would insert into the holes and when de-energized, it would lock.
I may just adopt the slide in camper idea. From what I've seen, they have an electric jack on each corner. Then you reverse the car underneath it and lower the jack.