Something else to throw into consideration.....
Is the camper going to be mounted all the time/some/seldom?
Reason being the higher the load capability, the harsher the empty truck rides (some are almost brutal empty).
Some guys who know the TC will be mounted up occasionally sacrifice on their TC wants and buy an extremely small lite camper so they don't have to buy a truck that is harsh riding during its primary function as a daily driver.
Just throwing this in the decision mix to complicate the choices a bit more.... ;-)