Get me the VIN# if you can and I'll let you know what you should pay. I'm a salesman at a GM dealership and can pull the invoice to let you know if the dealer is giving you a discount on top of the rebates or not.
O, and for $39,000 you should be looking at an LTZ for sure.... for about $35,000 you can get into an LT2 package with a 5.3L