What model Funmaker is it? There will be a maker's plate on it somewhere, probably underneath the keyboard, so it's time to get down on your knees! If it's analogue, which I'm sure it will be, then there's no limit on polyphony. The Orbit is what it is, an early monophonic synth. No bells or whistles like temperaments. How about using the headphones socket as an output, suitably padded down if required. Is the organ standing on carpet? If it's thick pile stuff then that can cause such problems with the pedals?
I'll let our resident Wurli experts tell you about the contacts, generators etc.