Your question may have been to general. I am looking at a 94 so searched a few of the forums here and elsewhere for airstream land yacht 93, , 94, 95. A lot of information popped up. Some tidbits I found:
Quality coach, but at this age it is more important how it has been maintained.
Water damage is common.
"parking brake" device seems to pop up often as a topic.
There was a fridge recall for RVs in this age I think. A replaced fridge would be good.
Look at tire age rather than miles.
A few reports of gasket issues with the Chevy 454. But hey, if your engine is 19 years old new belts, hoses, gaskets might be something wise to do.
All of the above is NOT based in my own experience. Just browsing this and other forumse. So it is second hand information, discount it as you wish but I hope you find it helpful.