First off, it would be much helpful if you posted some high res photos in good lighting. In this case, I see three ways to go:
One: Like Usman Saeed said, leave it as is and as per Pakistani mentality, your resale won't get affected.
Two: if the paint is gone as a result of scratch and bare metal is exposed, I'd say get it touched up before the metal starts getting corroded.
Three: unfortunately, most of the paint or denting experts won't be able to patch it up by cleanly repairing a small portion. So the whole piece might have to be done.