KZ1300 Rear Master Cylinder Rubber parts?

I know it's been asked multiple times!! I still have not found a source for the cover diaphragm and dust cover for piston. I'm normally pretty good at sourcing parts but am having quite a time with this one. Any Suggestions? Thanks, Clay

Sadly? They don't really exist, unless you get lucky on eBay or whatnot. They were only used on this particular MC on this particular bike model, so parts availability is kind of... difficult.

Occasionally the entire rear MC will show up for sale, and honestly this is probably the best way to source these parts (and even then it's a major roll of the dice). You MAY be able to modify a front dust cover to fit the rear, but don't quote me. The lid cover diaphragm is nearly impossible to get a hold of.

This is why a lot of guys just replace the MC.