Since my Spyder came with the wheels, I really have no idea about cost. Tomorrow it gets new rubber (tires are 2005 manufacture) and I will have the shop put a tape on them for width. After looking closely, it appears that there was a lot of machining done and they are also 3 piece as there are about 40-50 bolts holding the barrel to the center piece. I remember reading someplace that Coddington (or his Son) was making bespoke wheels for Spyders and they were Expen$ive. From the look of things my car was an open checkbook build/maintained. Details are still available on BAT if you search 550A Spyder.