Hello, it was a while ago...
But has Ps not BRM´s as well ?
Image wheels in England has them.
I think there are several makers there too.
Look up the club, and ask Ken saunders, he made some him self from casting off the centres from a original wheel, then made it up using modern wheel half sections; bolted but on the back side: invisible.
Some australian guys might be able to help with contact addressess as i remember there are a few makers in those parts of the world.
In the US there are several, can´t just remember right now.
Trigo ?
Cobra specialists
Will see later, if i can find some thing in my "papers"....
You guy´s out there must know plenty about this issue.....
Regards,