if it's a nail or something small in the treads, i usually just plug it from the outside.
not sure how much scratches you have on your wheels, but if you take it to just any tire shop, they will most likely scratch the hell out of them.
make sure u go to a tireshop with a touchless mounter. americas tires (discount tires) appears to have them these days. they should be able to patch it up form the inside for pretty cheap. like $15-25 tops. they might grant manufacturer warranty too.
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