Thanks everyone.
The engine I've been considering is the 20-3281-1 New York Central 0-6-0. It's PS2 with a wireless drawbar. The owner's manual indicates that it has a 2-rail / 3-rail switch on the tender. I will be running 3-rail only, and need the engine to be able to trigger the non-derailing feature on my 022 and 711 switches. I assume that, even if the engine is configured for 3-rail operation, the left- and right-side drivers will be electrically isolated from each other -- which means that the non-derailing feature of my switches won't work. Correct? Is there a solution that won't require major surgery? Thanks.