I'd be all over it. Give me limited, rugged detail; scale size; and idiot-simple electrical control.
If it's so hard to mfg replacement parts and electronics can no longer be maintained due to again (obsolete or no longer made) parts.
Idiot simple electronic control is the BEST option.
Funny how we started out in this hobby .....running trains in a circle...now we run around in circles trying to maintain and keep running our trains.