If it's perfect no less than 25%. That's what I got on my first Airstream a few years ago.
I wouldn't buy it though because it is essentially a used trailer with a new warranty, You can get up to 15% off an actual new one ordered from the factory exacrtly the way you want it.
There have been important improvements in trailer quality and equipment the last two years. Don't miss them.
The two year old trailer has been used by tire-kickers and rv shows, and exposed to the elements without care. Corrosion and shortened sealant, tire, converter, and battery life can be expected.
This is a dog compared to a factory-fresh trailer.