I've been there with the truck thing and before we bought the Monty, we had a TT and towed with a 1500 then upgraded to a 2500 then the 3500 DRW before getting the Monty. I was looking at the 3500 SRW at that time, however, the pin weight would've put us over the trucks payload capacity, so went with the DRW just for the payload. Those numbers you posted are the dry weights and once you add the hitch, passengers, cargo to the rig, you'll be close to your payload on the truck. When we looked at the FL Model, it was even close to my payload on my DRW so got the 3700LK instead. Yeah, some will say "add air bags, just roll with it, etc. "however, adding air bags doesn't add payload, it just provides a smoother level ride. Can it tow it, yeah, would I, nope, remember, towing is one thing, stopping and stopping quickly if needed is another.
2016 Chevy CC DRW Duramax
2019 Montana 3700LK