if you went through the clear while sanding you will want to sand down the rim with anywhere from 1000-1500grit wet IMO because you want the clear to stick (scuffing will work with a red scuff pad also) scuffing will help eliminate the risk of blowing through base coat.
if you are going to clearcoat them don't polish them because you want to eliminate as much contaminate off the rim as possible the clear will make them shine don't worry!
also my thoughts on painting with a rattle can for clear on rims.. its okay for some things i would recommend it however if you use ones they sell for rims that might work a lil better its defiantly worth a shot you will save money doing them yourself! but the clear i recommend if your doing it with a rattle can is jam clear/edging clear it is automotive clearcoat in a can and it can be found at a automotive/collision supplier.
if you need more help or other questions let me know
and thanks for the compliment
