You have already gotten some good advice. My 2cents coming from driving an SRW with a heavy camper is know your limits and drive safe and outfit your truck with the best tires and upgrades for carrying the weight. For me I only drive up to an hour away from my house on flat roads and I do a lot of 4x4 driving with the camper on so a DRW did not make sense for me.
I keep a very strict eye on my transmission temps, that or a blown tire is my worst fears. Brakes have stopped me good so far, however I have not had to slam on them yet as I drive slow and watch traffic like a hawk.