I had a '75 (IIRC) 318 Hang10 that I sold at the Nat's back in '04. I went back to the Nat's in '07 and the gal done an absolutely stunning job on that car. I'm so glad I pulled that car out of the wrecker yard and schlepped it up there (Props to Chris for using his truck to schlep it!).
She sells the monogrammed umbrellas there, and can tell you ANYTHING you need to know about Hang10 restos!