The dry weight of the Adventurer 80RB is 1800 pounds so some half tons may be able able to carry this truck camper if there is nothing in it. When you start adding stuff there is no way a half ton will handle it. Some 3/4 ton truck will probably be able to handle the 80RB but when you start adding stuff you collect on your trips you will go over your GVWR. Remember it isn’t just the stuff you load in your pick up bed but also what you put in the cab of your pick up that you have to add to your GVWR.
When I see advertisements stating that a camper can fit on a half ton truck I tell myself no way. I am sure dealerships put down what a camper will fit on using the lowest weight of the camper without any options, water and propane to help sell the camper faster.