B Body question.

You won't find actual production broken down to the options. You may get a number on the base model and some percentages related to the options. No real hard number on number of cars.

I wouldn't waste the time or money with GG...

With power windows your friend should consider one of my PW relay kits. Makes the window motors work much better than the factory set up and takes the load off the expensive switches. Just a heads up.