IMO doable for the camper. The truck will also tug 10k while hauling the camper but I personally wouldn't want to on a regular basis or thru the mountains.
You'll need at a minimum to get a proper hitch extension and analyze the tongue weight. Asking a lot of the back of a 1 ton truck.
Regarding suspension, if you're planning on making this a regular occurrence, I'd ditch the air assist for a full leaf setup with aftermarket leafs to carry the load. Someone else can chime in about stability with the air bag assist. My Gut says too much air and not enough spring may make for a bouncy ride.
Ideal setup would be a 5500/F550.