My favorite floorplan has always been the Surveyor 264. I noticed they show a Dry Weight but GVWR was N/A. When we looked at one in '06 the GVWR was over 7000#, IIRC. Don't know if that has changed. We bought our ROO at that time. When we moved to the Rockwood 2604, we looked again at the 264, but our truck is rated for 8000# and the specs I found were still too much weight. Suggest you dig further into this weight thing.
Surveyor builds differently than other TTs and there used to be details and pictures on the back of their brochure. That may account for some of the weight at that time.
Re the 3 you like.....assuming that the 264 has a jackknife sofa or one with an air mattress, that would be preferable. In the pictures it appears that the Coachman sofa is sitting on a platform and not usable as a bed. I do like the shower set-up much better in the Coachman with the surround. It appears in the Surveyor and also the Cougar that the shower is the same that we had in our HTT and it's not very usable for a taller or larger person. DH never used the shower but 1 time...he went to the shower house. If they really mean a Garden Shower with the glass enclosure, that's a whole different thing and a big plus. It looks like the Surveyor has a bit more kitchen counter space.
If the true weight is within your limits, my preference is still the Surveyor 264. We're on our second Rockwood/Forest River trailer and have been pleased with the fit and finish...assume it would be comparable with the Surveyor. Good luck...all of them are good choices, I just prefer the 264.
Trailerless but still have the spirit
2013 Rockwood Ultra Lite 2604 - new family
2007 Rockwood ROO HTT - new family
2003 Ford F-150
4 doggies - We support Adopt/Rescue.
Sam, you were the best!
Cubbie, Foxy, Biscuit and Lily - all rescues!