Jerk probably used the lip of the rim as a leverage point when installing new valve stems among other things. To answer your question re-finishing them should be fine, they can also powdercoat them if you want I'm sure.
I've had some... experiences with wheel/tire shops to and I will not take my business to one unless I know they do work on higher end cars or custom rims already. Taking your awesome new big rims to a random assed tire shop where they pay minimum wage to someone who really does not give two ****s is not a good idea.
2000 Mustang GT Steeda #0048 34k miles. 99 Cobra 4V swapped, FTBR IRS swapped, exhaust, tuned by James Gordon.
Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.