Your 100% correct on the BS. Not sure what it weighs but our 2007 WW SL2800 footer Super Lite was 7150 lbs. dry. We actually had the dealer weigh it at a CAT scale and hand us the scale receipt before we purchased it because of all the BS weight issue's WW was having. We looked at the FS 2600 before we bought ours and it was heavier than ours. I know that for a fact. That's why we went with ours. If I were you I would take to a scale and have it weighed just for peace of mind.
Maybe do a search on here. There was a boat load of info years back on here for WW weights. I know that because I was part of the discussions. LOL.