You might try Progressive Automotive (800-232-6512). They have a kit for '36+up Chevys and 35+up Fords. Their ad in Street Rodder(p224 Dec 2001) says to contact them for non Ford/Chevy vehicles. There's also a shop tour article on p206 of that issue. They may be able to refer you to a local installer. They were one of the first companies to make a Mustang II kit in the 70's. You might try looking through the ads in Truckin' or Classic Truck magazines.
[ November 08, 2001: Message edited by: 48Phred ]