Bi-Polar?
Little Joe! Little Joe! (Not for sale in Russia) And a 1952 Hiawatha, replete with Skytop and Super Dome! They can do the Armor yellow version later, and run some more E units to increase their ROI.
I will never run electric (well probably not), but that's one train I would actually collect. 'Course, I still need to get me a Zephyr...