If you remove something like a front fender, most automotive paint supply houses can and will scan and match the color. To paint the plastic frame covers when you supply the paint should run like $100 and they supply the clear.
When you have an issue with the fenders, very minimal look at $200 to $500. I had corrosion on the rear of the front fender in the black was $200.
A paint chip on the rear fender in the gold, half of the size of my thumb nail, $500. Both repairs are wonderful, and undetectable.
Having the shop paint the exhaust bracket I had removed, I supplied the paint, $25.
That being said, I have a half pint of the gold, it is Deltron basecoat.