Dxbolton
Zorg Guru (II)
I used VW transporter centre caps, but you need VW bolts as the heads are huge to allow the cap to clip onto them.I've ordered one of the F30 steel wheel (oval holes). I'll put a tyre on it and see what I think.
I'm going to re-read your build thread to see what you did with the spinners.
but. The wobble washer needs machining from a dome to taper to grip the rim. And thread reducing from 14mm to 12mm.