I'd do what JaysTT said. Its not too hard if you have the materials. Just get some 2000 grit sand paper and wet it and sand it off. then hit it with a buffer and some compound. Should look prettty good. I guess you would just have to know what you're doing to do it.

 

Had a tree limb (very big btw) fall on my hood and scratched it deep. I got it looking new with the method above ^.