Suggestion: Get a digital photograph of the VIN plate. You'll find it on the street side forward low. The number also appears stamped into the "Airstream Placard" on the curb side forward near the "Tradewind" logo. Take the photo to your Department of Motor Vehicles (or equivalent in FL) and do a search on it. Its always cleaner to have the registered named person on the the VIN search MATCH the seller's name. Then, make sure the seller's title VIN MATCHES exactly the VIN on AS Placard.
Since I didn't go through the drill above, I paid extra $'s to have a state-certified VIN inspector inspect my rig and write a report to the DMV. A fairly major hassle that can be avoided on the front end.
I'm good to go now, all registered with my "new" VIN and title.
Good luck and happy trails!
Abu Dhabi (until next August)
Art - W0ABX
High Desert Country of the Rockies
'85 Sovereign 25'er
WBCCI: 2197; AIR #: 36503; TAC #: NM-5