Our local auto parts store has PPG paint. You may be able to get it in acrylic enamel. Our store doesn't carry the PPG acrylic enamel and I used their Omni single stage paint with hardener on the Troy Bilt tiller. That paint code is for the IH color. We also have Dupont paint from one of our parts store. The IH Dupont paint code is 96766. I used their acrylic enamel light gold on my 1971 Wards garden tractor. I didn't use any paint hardener. It has always been sheltered. I used an epoxy primer and a paint surfacer over the primer. The blue was acrylic enamel from our local New Holland dealer.
Both paints sprayed and covered nice. I used Acme acrylic enamel thinner that I had on hand. Hal