Wyatt - The scale does not matter. When all is said and done the Grey and Grandure is an elongated switching layout. The GN main line is just a loop and only plays into the operational scheme of things.
Just going through old posts to clean and clear up issues with old links. fotopic.net died many years ago. Luckily I had all of the layout designs there stored off-site and recovered them. Everythiing is now available on the Andrew's Trains website: https://huntervalleylines.wordpress.com/ You can also follow on Facebook: https://www.facebook.com/AndrewsTrains/ My personal site which includes modelling and other topics of interest is: https://martinfamilyweb.wordpress.com/