The key is the code on the sheet that says retail stock. That means he's ordering it for his inventory, not your car , not for you, specifically. You may buy this car, but there's nothing here to say it's yours. they want you to wait on pricing so they can change the pricing if they want. Whatever you do , do not give up your car. You lose a Ton of leverage when you do that.
You want to ask for a GM workbench report., Which you can print, and look for the production code of 2000. That means they're building a car for you. Lots of threads on this in the pricing section ,read up on a few of them and you know the drill
This is a really good one
http://www.camaro6.com/forums/showthread.php?t=438736