Locating master cylinder rebuild kit for 500mx

[VenomRS4]

Does anyone know where i can get a rear master cylinder rebuild kit for a 1986 ktm 500mx? I called my local dealership but they couldnt find one. Any ideas? Thanks.

 

[mideastrider]

It may not show on the website but give them a call they may can help.
http://www.pentonpartsusa.com/

 

[mdavidso]

I'm looking for a complete Master cylinder, if you find a rebuild I could make one work, if you find one could you tell where?