Well there is no problem hauling a load, no problem pulling a camper. Your plus is you have a great cab. You don't need a dually. It is a deficit, The large chassis is a deficit just to go in snow or on dirt Forest service roads, haul and pull with a 350. If you get stuck, NO ONE will be able to pull you out. Option 1: Put your cab on a Napco Apache 36 chassis and add an aftermarket disc brake kit. A big 1T dually is not for forest roads and will damage the road when wet. If the camper is not too big, a 350 will do it. A 454 or larger would be nice. Option 2: If you are not in love with this truck or it's not a family truck, sell it and buy a 3/4 4X4. Putting cabs on chassis that are not the same era is difficult. Adding 4x4 axle and transfer case is not easy. This all depends on if you live in a area where there are plenty of reasonably priced donors. An Apache 36 4X4 is not usually easy to find, but nothing else will be either. I would NOT try to turn a big dually into a hunting truck/trail buggy/heavy load hauler/5th wheel puller/daily driver/Rockstar chick magnet. The usages are too far apart.
