Food for thought... Diesel costs (Maint / Fuel) are higher than GAS across the board.. I have one, love the power. but the price of diesel and the cost for repair makes me question my purchase of it so long ago.
Make sure you check your camper specs against what you are buying....
Slide in Campers are famous for being heavy.... Just cause the truck says you can haul it does not mean it will be safe or comfortable to drive. Most folks who but a TC end up doing a lot of mods to the truck to get it where they want. Suspension and tires wise........ I know been there done it..
