Looking for exact 69 rallye green paint for my Nov

[a69nova]

My 69 Nova is a few weeks away from paint. I in love with the 69 Rallye green color. So far it looks like I'm leaning towards PPG Deltron 2000 #43898 Rallye green. It references lighter than prime on the mix label. I had my body shop do a spray out and it looks nice. Before I spend the big bucks I want to make sure there isn't another paint company that is dead on to this old GM color? I am trying to replicate the exact color back in 69. Am I crazy? Has anyone else on here had any luck, or can give me advice on finding the exact factory formula? Thanks Mike