Call these guys and they can walk you through the conversion, help you with options. Just went through this for a friend. He opted to add copilot upgrade and just use remote. Like art said you can get this board and install it then buy latter model foot pedal about as cheap as you can get a used legacy foot pedal that may or may not last. According to these guys the new foot pedal is almost fool proof.
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Charlie Weaver USN/ENC 1965-1979