Chain Plates

[Storm]

I am in the process of changing out my stainless steel chain plates and am considering C655 silicon bronze. I am thinking of buying mill C655 bar and drilling holes and polishing to make my chain plates. I would be using either silicon bronze nuts and bolts or 316 ss.

One thing that concerns me is the source of the silicon bronze- some Asian sources may be questionable as to quality and if it is truly C655 specifications.

Please comment and advise if this is a good idea.
Regards