Trailer worthy of full-timing

[galsal49]

I am looking for a small airstream - 16-17 ft and plan to begin full-timing next spring. The question is about older Airstreams. There are not many small used Airstreams on EBay or in the classifieds but most are 60's era or vintage Airstreams. I think they may be better used by people who vacation for a week or two. Are they still sturdy enough for full timing?