Clutch master cyl?

[Golfwang]

Hey I'm looking for a master cylinder to use for my clutch conversion.
I want to make it a hydraulic foot clutch and I'm wondering if there's a cheap 9/16 or 14mm rear master BREAK cylinder I can use.
The only ones I can find on the internet are brand new and are upwards of $120.
Surely there's something off of a sports bike I can get dirt cheap from a salvage yard or something like that, right?

Does anyone know of a rear master cyl. that's 9/16 or 14mm?

 

[Golfwang]

It doesn't HAVE to be a break cylinder, it can be any cylinder. I just want one i can mount on the frame.

Anyone know of anything that might work?

 

[XSLeo]

J&P has Wagner-Lockheed brake m/c. As in item #2400570 $57.99 This item is for 73-E79disc brakes on FL,FX Harley's
The same item except for drum brakes is $62.99
Kelsey-Hayes Item # 2400260 $74.99 fits 80-81 XL, 79 - 82 FX and 83 FXE
Might find one cheaper on Ebay.
Leo