No aftermarket supplier. Check with your neighborhood upholsterer or post an ad in the "Parts Wanted" section of the forum, someone may have what you need in nice used condition.
I got a set made by an upholsterer and I also got a set from Brazil. The set from Brazil was costly and so was the shipping.
I have thought about making sets, but not sure if it would be really needed by everyone. I have access to the material and the ability to have them made..
Do you have the ability to remanufacture the chrome trim? That seems to be the hangup with getting them made.
Here are my Scotts aluminum panels plus I have the rear quarters as well. I doubt you want this for a street car unless you are going for the drag car look. They are nice though, and fit perfectly. I also have the small panels that go where the arm rest went...........just haven't put them on.
Man... My car will be a street car but still those look great! Will the arm rest bolt on too if you wanted?