I am in a 3/4 ton now. If I were thinking of a slide in camper of any sort I would be looking to jump up to a 1 ton. Sit down and do the math on what the camper plus all the provisions, gear and warm bodies will weigh. It adds up fast. It is a lot easier/more comfortable to have a little more truck that you need than the other way around. Riding around on the bump stops or trying to beef up a suspension that will never be heavy enough will be a bigger headache and cost as much as jumping up to a bigger truck that will do the job right.