The o-6-0 Polare Express Switcher is catalog as a "Lionchief" loco because the Legacy electronics can't fit into such a small locomotive. When you talk "O Scale" it's about size and its the size and details that count..
The Switcher on the far right of the pic will be the SAME switching locomotive Painted for the Polar Express
The arial view of the Same loco [one on the bottom] that will be done for the Polar Express.
This Polar Railroad Switcher will be MORE to scale than the ex K-Line B6 painted as Polar Railroad.