Welcome to "VCCA Chatter" and 1931 Chevrolet ownership. I have owned at least one 1931 since 1969 and still find them interesting and enjoyable. They have one of the VCCA's largest ownership numbers despite being over 90 years old. Parts are available but mostly in member's stashes. The Filling Station, a "Chatter" supporter is a good place to begin a search, wanted listing here a close second option.
Joining the VCCA is highly recommended and easy to do. Just go to vcca.org, see what is available and sign up. You can put my member number 4868 on the recruited by line if you wish.