WANTED: 79 CHEVROLET CAPRICE CLASSIC WAGON 3RD ROW REAR SEAT

I located a complete frame/module with seats. My wagon never came with this option. I'm looking for the brackets also known as the seat cushion retainer plates. They attach the bottom seat cushion to the floor. 2 of the rear brackets anchor the seat which are bolt in. And the bottom brackets are welded in. Any help would be GREATLY apreciated. Contact Sam