Hmmmm, you sanded the rim. Ummm, that's pretty extreme, dude. To my ears that is like hearing, "I just sanded the car, what do I do next?" Ha ha.
I usually just spit on a rag, or dip a napkin in coffee and dissolve the creep and scorch off of the rim as I smoke. A little elbow grease and the mild acid of spit/coffee, and my rims stay shiny new looking.
I also have a board with a piece of leather and a piece of carpet tacked to it, to keep them polished as well. I just rub the pipe over it briskly.
But, you looking at polishing, re-staining, and waxing.