Wanted - Body for old Cox 0.49 car

Hi, I bought 2 Cox 0.49 chassis with engines. I took them apart, cleaned everything and reassembled both. They run great! I don’t have the bodies for either. These are the older style metal frame and I believe that they are 1:20 scale models. Does anyone have extra bodies for sale?
After a bit of research, I think the bodies are the Corvette,Rivera or Ford GT. I’m not sure if there are others.

If anyone is interested in selling a body or 2, please let me know.
Thanks
Bob

Probably your only shot is eBay. I have run into two different wheel base on those chassis, I assumed the Buick was longer but had none to measure.
I think they are close to 1/24 scale and have seen dicast bodies fit to the chassis with much craftsmanship.