What MIDI encoders will you be using?
The easiest encoder for to use would be the parrallel type, not the matrix encoder type. You will need an encoder for each manual and pedal, including 2nd touch as a separate manual. (5 61 note encoders plus 32 note for the pedals)
You will also need an encoder(s) with enough inputs for all the stop switches, and effects buttons/toe studs and piano levers. You will also have to convert the swell pedals from the discrete contact type to a type that moves a potentiometer. These will connect to the analog inputs of the MIDI encoders. (3x for Solo, main and crescendo pedals)
There should be cables coming off each keyboard that you will probably have to ring out. These will connect to the encoders. If the console is more or less original, this may be a problem as all the keyboard and stop cables were taped together in one giant cable that went off to the the relay. These cables were taped together with friction tape and the individual wires are double cotton coated and copper wire is shellaced.
If it were me doing this, I would strip out the old Wurlitzer key contact blocks and replace all the key contacts with new ones and wire them up with new, color coded telecom cable. Organ Supply Inc. sells a 4 wire contact block that is a direct replacement (p/n 0220.24). Use two wires for feed and two for MIDi note on/off. This seems like more work but It would save some time stripping and ringing out cables, plus the key contacts would be new.
http://www.organsupply.com/catalog_orde ... heatre.pdf
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