I have been compromising on a 5th wheel for several years now. It is ok, but it you are starting a "look" for one, look for Teton (out of business, but good used ones around), NuWa (Hitchhiker), or Excel.
Fleetwood, Kit (I have one of each) are cheap, cheesy. As are most of the others being built today. Actually pretty much all of them. Economics of trailer construction is ripping a new one through the industry and leaving nothing but debris in its path. I am living in the Kit and getting ready to move into the Fleetwood ($500 trailer plus a rubber roof), but if could afford it I would do one of the above!!
If you can find a 1978 - 1987 Holiday Rambler in a regular trailer, 30 ft or more, in good shape, that would be a great trailer.
Kit - has been a "good" trailer for my needs. They are very crappy built, though, and are now out of business. The wood in the walls rots at the drop of a hat - it is like most made today, cannot keep them sealed due to the nature of the design. I plan to scrape the box off the frame and either rebuilt it along the lines of NuWa or use the frame for flatbed trailer.
Couple of web sites. I like the videos on NuWa. I have tried mockups of wall construction on small scale and the blue foam is wonderful!! VERY strong method.
www.nuwa.com
www.excelrvs.com