hifi engine

Marantz 3800/3600 Volume Control Pot WTB

Just wondering if anyone out there has a Marantz 3800/3600 Volume Pot. It is 50K dual gang pot with center tap for loudness. Mine is shot. Took it apart, but the carbon is cracked and not fixable. I have 5 other dual pots pots that would work, but they don't fit the close quarters of the circuit board. If you know of another pot that would work and fit please inform me.

Many thanks!