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Mutron Biphase help please

A friend of mine just a mutron bi phase for 8 dollars at a local fleamarket. It doesn't work and is missing the pedal. I'm fixing it up for him with my tech and I already changed a few parts. So far I replaced the input and output jacks, and some resistors. I need some schematics and to know if its possible to use the pedal without the A/B channel footwitch? If no (which is what i suspect) Does anyone make a footswitch for it? Is it possible to make one that uses regular 1/4 plugs and not that weird pin assembly. Any help would be appreciated. The pedal is in pretty good shape overall.

A few gut shots
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