Excellent job! You did some great work.
As far as the center caps, you should go online and try to buy some new ones. Even check out the parts department at your local Pontiac dealer. They shouldn't be too much money. It'll make a nice touch.
CenterCaps.net - Cap Listing - Pontiac
My father curb rashed his BMW wheel in 3 spots and had it professionally done for $125.00. It came out flawless.