Raybestos MK697 or equivalent M/C Rebuild Kit

I need a rebuild kit for what I believe to be a 73-75 power brake front disc master cylinder (that I got in the Tom&Dee auction back in April). It seems they are out of stock everywhere.

The Raybestos article number is MK697 but there may be equivalents.

The bore of the M/C is 15/16" and it should look something like this:

MK697-1.jpg

In case you should happen to have a decent master cylinder laying around, that could be of interest also. The casting # on the one I have is 3580121.

Shipping would be to PA, so don't worry about me being in Sweden. :)