i curbed the wheels on the gti 180 really badly... so before i sold it i got chipsaway in to do a cosmetic repair... £35 + vat per corner which i thought was quite reasonable. unless you looked very closely you couldnt really tell they had ever been damaged. as your wheels look as if they are off the the car though you might be able to take them to a place to do a 'proper' repair job.
tbh you may as well just sell them as is and let someone else refurb them.