I'm convinced I'm must be living in the sticks up here! I visited the only local Dupont automotive paint experts with your colour suggestions, Jared. No go with the PPG Delstar, no info. Couldn't identify Dupont code 75 1978 red lucite acrylic lacquer, must be too old!
Managed to drag out sample colour cards for more modern motorcycles, but not sure if they kept the mixing information for those colours. The guy was really trying to help, though, and didn't give up.
Finally found one which looks real close for the VB. It's an Aprilia colour, Rosso/2, and may just do the trick - If they can find the formula.