I have a 2011 831FKBSS on order...should be in next week. On the list of things to do is take it to the scales, so, if you can wait, I will have an answer for you soon.
I will not be towing mine with a 1/2 ton. I was pulling my 2006 Rockwood 8315SS (the same floorplan without the bedroom slide) with a 1/2 ton '95 Chevy. Decided the TT was a bit much, and moved up to an Excursion. As for the hitch, I am using the Reese Dual-Cam, and have been very happy with it.
John & Nicole
2004 Ford Excursion 6.0L 4x4
2011 Flagstaff 831FKBSS
Nights Camped: '06=122 '07=12 '08=18 '09=10 '10=18 '11=28