sorry man, I dont think I'll be pulling the crank pulley unless I have a problem that requires it ..... If your lucky, someone will have one that is sitting on the shelf for some reason..

The only one that most likely has the drawing in hand would be Eurocharged.... understandably, they are not likely to part with it...

Why not a drawing of the SC pulley and dimensions for turning it down... That would let you get a better idea of how much you could safely turn it down.... 67mm, 68mm??...