If there's no one around where you live, contact these guys. I've been using their services for over 25 years.

Maybe you can send them your radiator for evaluation / repair?

http://www.simsradiator.com/

Main Office 770- 939- 8020

Plus, they have an AD truck as a shop truck (at least they did in the 1950s).

1950 Chevrolet 3100 (Ol' Roy)

1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)