PPG base black is just a standard black for them. On blasted metal etched. I used a epoxy sealer black, sanded then a few passes with a build primer (tan), then single stage ppg black with a slight flattener to knock off the gloss (not a satin finish, but not high gloss) . Lot of sanding and wet sanding also.
If you are looking to do a reproduction of the factory paint. You will have to go lacquer.
You can mix brands. If you are lucky and have a automotive paint supplier close to you. Go there and tell them what you are doing. Or call and talk to someone and have it shipped. They know what you can mix and match.
It's an expensive process I wouldn't leave up to a forum suggestions and buying paint off the internet only. Plus a paint supplier will give you advice for free.
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