I decanted Rustoleum from spray cans to get the paint match for my ‘73.
The 4 colors you will need are turquoise, yellow, blue, and black.


Turquoise: 480 parts
Yellow: 99 parts
Blue: 62 parts
Black, 10 parts

This mix should get you close to the Celeste used in the 1973 timeframe. Celeste is all over the map, so yours may be lighter or darker.

Kurt