Where is everybody?

[48mirage]

Instead of replacing your master cylinder you can try releeving. Here is one lead, I'm sure there are others closer.

Sierra Specialty Automotive
3494 Chandler Rd.
Quincy, CA 95971
Telephone: +1.530.283.1886
Fax: +1.530.283.4845
http://www.brakecylinder.com/