Have you tried to get it replaced under warranty yet? Some SA's know how to push the right buttons in those cases.
I got the same p/n under realoem.com 32342283738. There should be some used "like new" wheels for sale around here as well.
Current - '11 e92 M3 SG/FR ZCP|ZCV|ZP2|2MK|494|415|6NR|752