Can you put a short bed camper in a long bed pickup?

Have you seen this camper up close ? From pictures it looks like there is a bulge on the rear tub , right and left , which would prevent it from sliding forward past the wheel wells . This is typical of most new short bed campers . If you find camper with straight sides ,48", front to back ,, you can slide it foward. Ignoring leverage doesn't make it go away , it is physics . On a seesaw you can easily lift 600# with 100# depending on Where the weights are placed