Buddy's father is considering buying a '39 Special 40, 4 door sedan. Straight 8 still in it, car appears to be all original. This is an American car.They have a Cdn. parts car with it but apparently suspension, hub bolt patterns & a few other things are different. Sheet metal looks the same.Vendor has had both cars for about 10 years. Any repro sheet metal parts available for this car?? In particular, looking for floor pans. Possible another GM product shared the same pan??