Art, there is a complete 30 chassis up near Santa Barbara. I have pictures but have not seen it in person. Looks like a nice original, been in a barn for years. Says there aren't any #s on the frame. But he's not a Model A guy either.
He's asking $1025
Email me if interested for pictures and contact info.
I too have been searching for a 31 frame to go with a Ca Title that I have.