Got the hatch opened up finally and found a panel that was locked and inside was a ton of original papers for this car, I'm trying to decipher some of these but could someone help?

 

Their are plenty of info on here to help you with these code. Contact me by email I will do it for you and give you a nice report for a small fee or you can get a copy of the dealer invoice for $50 form GM Media Archive. With that you can get a preproduction window sticker for another $75 for Triple A Enterprises they do a good job.
If interested my e-mail me. Keep in mind not all the codes can be traced as some are package options.

 

http://www.rpocodes.com/index.html

 

This sheet I believe was from a sub assembly line, it's not the actual build sheet. I found these in both third gen Camaros that I bought new a '89 and a '91. I used to go around to Chevy dealers on Sundays back then to see the new Camaros, The ones that came fresh off the truck before the dealers would prep them, came loaded with all build documents just thrown inside the car from Van Nuys.