I would suggest taking a look at a Four Winds Five Thousand. We have had ours for 8 years and like it. It is 23.5 feet long and we like it because we can get into tighter spots that larger RV's can not get in to, yet it is a full class C with all the accessories the larger ones have. We were lucky bought it used less than two years old with only 3,000 miles on it paid 35 grand in 2005 it was in mint condition when we bought it.
It can sleep 6 although that is kind of tight, it is perfect for four or maybe 5 adults on a long trip. FOr one couple no problem lots of room. 3 kids can easily fit into the overhaad bunk though lots of room up there, although the dinette and the fold out couch beds would be a little too short for a tall person to fit in to I think maybe a 5'10 or 5'11 max person could sleep on those beds. The newer model Four Winds might have a longer bed so check them out. I think they made a 26 or 28 footers as well.
One note though, I would suggest getting the GMC chassis instead of the Ford for the simple reason that you will have a lot more leg room in the front seats with the GM compared to the Ford. We checked out both the Ford and GM versions and the Ford makes the passenger squinch their feet close together due to the larger engine size. The GM engine is smaller it's a 6 liter V8 but it can still tow up to 5,000 pounds I believe. We found the GMC much more comfortable up front.
