OVER!!
With the propane tanks full, and about half tank of water, and NO GEAR in the camper, I'm over weight. This was on the way home from the dealer.
We can install all kinds of upgrades and mods, but they don't increase the weight carrying capacity of the truck, they just make the truck handle better or improve the safety margins of carrying said weight.
Regardless of what I do to my truck, it's still only rated to carry the weight that the sticker on the door says... which is 11,200.... but at you can see in the photo, I'm carrying more.