I had a 2015 Ram 3500 4wd dually and now have a 2018 Ram 3500 dually 2wd. My recomendataion is try it first. I would recommend a BigWig sway bar in the back since the truck has none from the factory.
I carry a Arctic Fox 990 which runs around 5000 lbs loaded. I added Torque Lift Lower stable loads to the 2018 just to bring the back up a little, but they also made an additional reduction in sway.
I hear the factory air ride bags for the dually are single feed, so as your camper sways the air can transfer from one bag to the other, so might not be the best choice.