How much should I sell a pair of chrome nerf bars for with some rust damage?

I have a pair of chrome nerf bars/step sides whatever you want to call them. They have some rust spots on the parts of the metal where it curves to go under the truck. I have gotten rid of all surface rust. The largest spot is an inch long. I am just looking to sell these. In good shape other than the rust. No dents. Still look good.