Truck camper, towing a boat and payloads

Also forget the published camper weight. Don't just read the manufacturers' claims, search around a bit and see how heavy they are when actually scaled ready to go by owners. They always end up a lot heavier! And yes I said always!
It's really simple. A half ton is the wrong choice for camper duty, you'll wish you had something stouter.
The salesman may tell you whatever you want to hear. This place is full of guys who own and use these things, a good percentage of us have had many camper/truck combos. We will give it to you straight, we aren't trying to sell you anything.