Wow I may have just found a bargain with the same seller. They are not listed as fitting the 350Z Brembo, but are listed for the R32, 33 and 34 Skyline Brembo, so I believe they may fit as they are the same size and stud pattern as the 350z Brembo. Someone with quite a bit more expertise than me (shouldn't be hard) may be able to confirm.
http://www.ebay.co.uk/itm/DBA4928S-Fron ... 472wt_1112