In addition to the Lance models mentioned the 845, 855, and 855S are in the same weight range as the 830.
With the 2500HD the limiting factors are the rear leaf springs which you can address very easily with a set of Supersprings, and the rear wheels.
If you get a camper with a dry weight of around 2700 lbs. fully equipped then it will be around 3500 lbs. full loaded for a trip. If your truck at the rear axle weighs 3200 lbs. (with the tie-downs mounted and the new Supersprings) then the total load on the rear wheels will be 3500 + 3200 or 6700 lbs.
Most factory tires are rated for 3200 lbs. or less. The two tires at the rear provide 6400 lbs. or less of load capacity. There are tires from Nitto, BFG, and Toyo, that will provide 3750 or more per tire and at least 7500 lbs. at the rear axle (which is where 95% of the camper's weight is carried).
Costs for your truck are the 4 new tires, a set of Supersprings, a set of tie-downs and turnbuckles, and the wiring harness for the camper along with a fuse and isolator (keeps the camper from drawing down the truck's starter battery).
Not a lot more to it than that. If you stay with campers that have a sticker weight of 2700 lbs. or less you will be fine. More than that and you will need 19.5 rims and tires at a cost of around $3500. The lighter the camper the more other stuff you can carry on your trips.