Howdy, and welcome to Airforums.com, djgarcia! You have found THE place to ask just about any Airstream question that you can imagine.
A lot of people find the best way to become knowledgeable on Airstreams is to dig in and read. Try reading one or two of the l-o-n-g threads that detail how owners have slowly and with time rebuilt trailers from the ground up.
Then maybe read some where folks have done some work on their trailers then travelled to far-off places in them!
Read read read, you'll love it!