Welcome to the forums!
Congrats on your Airstream purchase!
Post pictures, we love pictures! This is the best place to find out all the answers to your questions and get lots and lots of opinions!
I would suggest for the parts you are looking for, check our classifieds, and if you don't see what you want, post a "wanted" classified! Also check ebay, and the various vintage airstream suppliers. If those things don't work, check out other folks who have the same year model as yours and send them a personal message and ask them where they have found parts!
Good luck and have fun camping!
Mrs. NorCal Bambi (traveling in S Tardis)