Specialized Auto Components

About 20 years ago (and before) there was a shop in the L.A. area called Specialized Auto Components that built hot rods and sold parts. They had a rear parallel leaf spring kit for '35-'40 Ford alot like Chassis Engineering but both the front and rear spring eyes were reversed and the pivot for the shackles was up into the frame rail instead of below it. I've done searches and it looks like they are no longer in business. Does anyone know if anyone is now selling this kit or one like it?
Thanks, Bruce