I recently acquired an old Terry 28' fifth wheel camper.. I currently don't own a pick-up but have a heavy duty work van. Is it possible for the hitch on the van to be modified for the van to haul the...
Can it be done? Yes, it can. Should it be done? Probably not.
Figure around 20% of the weight of the trailer will be at the fifth wheel hitch point. Math and physics will explain why what you're considering is probably a bad idea.