Daniel,
Welcome to the forum. I don't know enough about the IS F Sport, but have you checked to see if your spare has the same wheel? If so, I'd swap the wheels and have the damaged wheel become my spare. Otherwise, your best option is to google "wheel repair" or "rim repair" and you'll likely discover a lot of options (some even come to you) and I agree with mcomer - those guys can do some pretty amazing things. It would be way cheaper than buying a new OEM wheel. Keep us posted.

 

the spare isn't an f-sport wheel. the spare is a smaller wheel with a smaller tire attached and it's a steely.