This Trade Wind has the early sixties wheel well shape. I'm guessing a
1961. I don't recognize the big box on the roof.
Trade Winds at 24 feet are a nice size. $2500 is not too much for a good shell and frame. EVERYTHING ELSE is likely not worth much. What you are looking at is a huge project in terms of cost and time. Fun, but huge. Take a look at "restored" and "renovated" sixties Trade Winds that are travel worthy and you will find prices in the $15,000 range all the way up to $60,000. If you want a travel ready camper, this ain't it.
There are so many good threads in these forums about the trials and tribulations of fixing up old Airstreams. People do it as a hobby, and the results are rewording. I guess the project will take over 2000 man hours for a shell off renovation.
Welcome to the Airstream Community...
David