You can always call GM and get the package for it. It will include a new RPO sticker. Can't remember the number off hand, search for it, there's a thread on it somewhere in here. It's free, or like a $10 mailing/admin fee or something IIRC, I did it a few years back for a 1970 impala. Nice package. Gives you everything and anything you wanted to know about the car as it was orginally delivered.