It sounds like you might want to run this on DC at the club and AC at home?
If so, I would place double pole switches in the engine and tender.
The switch in the engine would transfer motor power from the motor driver board (blue, yellow wires) to the track (red, black wires). Using a recitifier would prevent the engine from going in reverse. Powered directly from the track it would operate just like any other DC engine.
Similarly the tender switch would turn off power to its electronics when running on DC. If there was room you could put a sound decoder in there and use the switch to transfer power from Railsounds to DCC.
If you have no intention of using AC power then just gut the engine and tender and install DCC.
Pete
