my '72 Duster

What brand paint did you use? Im asking because I dont want to pay 700 for 1 gallon of paint. If you could help as much as possible that would be great, hope i didnt ask you already! haha
I didn't paint it myself, just did the bodywork.
I asked my painter for the leftover paint, and it's in a PPG tub (it's waterbased) but I don't know for sure that that means anything (he did tell me the clearcoat itself was $800, so the paint was probably pretty expensive too)