I wanted to mention one more thing. I noticed that you had not posted anything yet. The Members Introduction section is a good place to start
http://www.airforums.com/forums/f368/ . There are hundreds of fellow Airstreamers just waiting to tell you how, I mean help you, with your project.
Post some pictures also. We looove Airstream photos. Most here have never seen one they didn't like.
Good luck with your project and let me know if I can be of any help. But if you look close enough you will realize that I am a newbie also (since Feb.).