This new wheel from Konig is advertised as being available in 15x7 with 0 offset. Lug pattern was stated as 5x4.5" in one magazine, but this pic shows 4 lugs, so who knows? Price in the same magazine was listed as $125 each.
http://www.konigwheels.com/catalog_product_details.cfm?CategoryID=1&ss_id=405
http://www.konigwheels.com/catalog_product_details.cfm?CategoryID=1&ss_id=405