One thing you have to watch for on these new light weight campers is to not have any weight carried at the ends of the frame rails, either by dragging on the jack pads or by intentionally adding wheels. The frames will simply not support that type of load. And adding wheels will actually make the situation worse by decreasing the clearance even more.
But primarily, you do not want to be dragging on the jack pads, as you will most likely rip the whole assembly right off the camper. If you look at how the jack assembly is "welded" to the frame, it will scare the heck out of you!
Those jacks are most definitely NOT designed to carry the weight of the camper, but only a small fraction of it.
Lifting the camper is probably your best bet. Raising a spring suspension is very easy, torsion a bit more work.