GP38-2 on my newly created 36”x18” layout

Eino, Thank you for your comment…. Very much appreciated…
but with some additional checking, and accepting the experience of other prominent Z scalers, my inexperienced design will not support SD40 or similar sized 6 axle loco’s. There’s plenty of 4 axle types that have certainly attracted my attention, and would provide a “good fit” sometime in the future.