Hi Mike, There were 3 greens as I'm certain you know. The interiors were all painted (for lack of a better term) a champagne goldish color. GM used this for several years and the exact formula/color is somewhat open to debate. You can see what I used below, and I matched this to a piece which had not seen sunshine since it was originally painted. If you want the name/number, please let me know. Most people like this mixed with a de-glossing agent.
You can see what exterior colors were used by following this link (plus a ton of other information):