I am creating a model of the California Zephyr and after researching the dimensions of the train I have some questions including how it can fit on an HO scale train set. First off the dimensions: the tracks are 4 foot 8.5 inches apart, and the train cars are 10ft wide. Is that correct? All the pictures online of the trains look like the wheels are almost flush with the outside of train but the dimensional drawing shows the wheels way in to resolve its 10ft width to fit on the 4' 8.5" tracks. Secondly, does HO scale actually scale the width of the railroad tracks? TIA jon