Another option from the same guy who has the Ruf wheels for sale
http://forums.pelicanparts.com/porsche-911-used-parts-sale-wanted/1172735-fs-replica-fuchs-17x8-17x11-turbo-widebody-fitment-new.html
I have no affiliation, but do have a set of Ruf wheels on my 81 SC. Fuchs, BBS and Ruf, those are the proper wheels for a Porsche 911/930