Having been through the dreaded floor rot after purchasing a used Airstream I'd be very suspicious. I had mine repaired at the Airstream factory where 1/3 of the plywood was replaced and 100% of the vinyl floor. There are no staples in my floor. The table is perfectly level.
This may be a trailer you want to pass on. Before purchasing our trailer we traveled 600 miles to see another 27FB. The pictures looked great and the owner sounded good on the phone. When we saw the trailer several alarm bells went off when we saw a few less than perfect repairs. We turned around and drove 600 miles home having dodged a bullet.
While we didn't know the trailer we ultimately purchased had floor rot when we bought it (the Airstream dealer we paid to inspect it for us before we sealed the deal with the seller didn't uncover the rot), we did get a good enough price that we could pay to have the repair done properly at the factory and still feel we bought a good trailer at a fair price. We've owned our trailer 2 1/2 years, traveled about 15,000 miles, and enjoyed it immensely.
If you buy a trailer requiring repairs, make sure the price reflects the need to spend more to make it right. I encourage you to have repair work done at the factory or by someone who has an excellent reputation and considerable experience with these trailers.
Airstream - 2008 Safari 27FB SE (Sweet Pea)
TV - 2011 Ford F250 Lariat, 6.7 Diesel, 4X4 (Brutus)
TAC FL-55 | WBCCI 3823 - Unit 12 | AIR 48265