Standard 17" Alloy Price

Does anyone know how much the dealers charge for a standard, 17" silver alloy (I think it's part number 82 00 667 039)?
 
I have found out that my local dealer charges £190.01 including the dreaded. I was originally intending to put a new one on on place of an existing wheel that has had a minor smart repair done to it previously, then get it refurbed as a spare. Thankfully a mate knows a guy called Topgun in Barnsley who works on Bentleys and other exotica who is gunna put right the dodgy workmanship for £50.

Thanks to everyone for there help!