Our Lance 811 paperwork says it's 3017 lbs wet, probably closer to 3600 lbs with gear in it. Does have a dinette slide, but also a wet bath. Our SRW Ram is rated at 4300 lbs cargo capacity, so with 3 adults and gear in the truck we would be right at GVWR, if not slightly over.
No question a dually would handle it better, but we don't really feel any side-to-side sway now....plus a dually can sometimes limit you on where you can go offroad, plus it's a pain to use a dually as a daily. (say 3x fast LOL)
Pay attention to weight ratings on trucks as they vary by box length, cab configuration and engine choice.
