I'm not sure about your specific situation, though pics might help us see exactly what you're talking about.
Do you know the actual cause of these scratches that you're describing?
I would first start with a good and complete cleaning to see how much help that provides, and then go from there. You might need to do some sort of painting, Plasti-Dipp, or even a wrap of some sorts if you don't want to replace the panels.
Also, how about stopping by the Newbie section
for a proper introduction and welcoming?