I can add some input here- we used to have the pop-up version of the Adventurer on a 3/4 ton truck and there was no way that I could forget what was in the bed. (BTW, we are currently using our 4th TC, so I do speak from experience)
The TC you are contemplating weighs just under 2000# dry and without any options. I cannot imagine that you will be under 2500# even if you keep personal items to a very bare minimum.
I think that you are going to be unpleasantly surprised at how much that weight is going to affect your truck. You are looking to increase the suspension on a truck that wasn't intended to carry that weight- relatively lightweight rear axle, brakes, and frame.
Take a look under a 3/4 or 1 ton truck and compare it to yours. The difference is very evident.
Best of luck with your decisions.