Although I now live in GA, there is not an Airstream Dealer in this state and I bought my last one from J D Sanders in Alachua, FL (close to Gainesville) and have had excellent experiences with them. There is a dealer in Gulfport, MS named Foley RV Center that has gotten a lot of good press from customers which would be closer to Fairhope and might be able to help with your questions on this particular unit.
No matter who you take it to, going with Airstream is a good choice and I don't think you will regret it.
Walter
PS Roll Tide