Thanks for the pic.
The question I am posing is . . .
What is the most suitable track spacing on either side of the towers. The towers will have an elevated platform to walk out onto the locomotive. Each towers platforms would be connected to another platform by an elevated walkways. Full length walkways, similar to the ones I already have, will be on the exterior. I am considering a track C2C of either 1.625in, 1.75in or 2in. Thoughts . . . . . .