Lionel could benefit by making the frame on dummies the same as the powered unit and put an adapter plate over the motor cutout, upgrade kit could be sold consisting of power truck cores with motors and plug and play wiring kit. No changing handrails detail parts etc I think Williams did this with some of their locos to power dummies or add additional power trucks to single motored units
In the past I powered the trailing A unit on a silver spike set for a young man I knew as the single power unit would not pull a full load of 6 cars.....slaved it to the lead unit reverse using Marklin plugs as the jumper. I also powered the dummy A of my SP Daylight F3s for the same reason 2 motors not enough for 8 aluminum cars
