Sand the damaged lip with 80 or 100 grit sand paper (don't touch, even lightly, the undamaged areas or you will scratch them). Sand until you achieve the rounded contour. Continue the sanding pocess with 220 or 320 grit and finally with 500 grit. The wheels sand very easily.

Go to your automotive center that sells Plasti-Kote touch-up paint and get a bottle of Toyota 3230 silver. It matches the 5 spoke wheel color perfectly. You can apply clear over this but it is not necessary.