1968 Rear Floor Panel

I have a 1968 Cougar GTE on a rotisserie and I noticed that I have a few rusted out areas where the rear seat bottom would meet the seat back. I see these parts are for sale at WCCC but what I don’t see for sale are “rear floor dual exhaust reinforcement panels”. I see that they are available for Mustangs but they look to be different. Has anyone found a place to buy these?

You will have to save the dual exhaust parts from your originals. There are no reproductions.