Yes the paddles are same for all the flip face trains (different colors depending on the model), so you could keep an eye for non working flip face engines that people are selling on the cheap, and then mine it for parts. Replacing the paddles is kind of tricky, but you really just need patience when aligning them with the spring and rod that connects to the face. Not sure what you can do if you’re missing a “rock” from the wall of the copper mine though?