Hi, welcome to the Forums, and congratulations on your new trailer!
Eric Stoltz and the guys at Camper Clinic in Buda are the only professionals around town with Airstream experience, as far as I know.
If you have any specific questions, feel free to ask them here on the Forums, or search through the Forum archives as well-- there is a wealth of knowledge stored here, and most likely any question you could ask has already been answered in great detail.
Also please feel free to PM me if you have any other questions, I have a 63 and am no expert on the 70s models, but there are many things that are common among all of them.
Good luck with your rehab!