Stop in for a cup of coffee

Looking for some input.
Battery cable clamps are a little marred up from years of the battery creeper.
I'd like to try and clean them up before I invest $$ in a new set.
Looking at it a little easy sanding will even them out.
Question what type coating or something to give them that original look??

Or just buy new clamps??
No idea how they go on heard there is soldering involved??
I would just sand them a bit and give them some shape and let them go without coating. They will look oem in a jiffy.