Track Diagram for Leuchars Junction

Have a look at local.live.com. You can zoom in very closely on the aerial photo of what's left of Leuchars Junction, and that should give you a pretty good idea of the basic layout that can be fleshed out by photos taken at gorund level. They even suppy a scale bar to make things easier.
Hope that helps, Nick

I have printed the 3D images out by using the "Print Screen" key, and then pasting into PowerPoint or some other drawing package and then cropping the extraneous bits. You can then add further images to make a panoramic view.