Welcome to the forums and retirement! It is great!
You have arrived at the absolutely best place to learn about Airstreams and camping! Folks here are helpful, friendly, and lots of fun!
I would suggest you read through the following thread. It will give you lots to think about when considering your Airstream needs!
We bought our Airstreams on ebay ~ some folks have had good experiences, others not. We had great experiences both times! But, it is a good place to view what is on the market (as well as our own classifieds here...) and see what the "going" prices are!
Good luck! Ask all the questions you need when they come up! Post pics of your Airstream when you find just the right one!
Mrs. NorCal Bambi (traveling in S Tardis)