I didn't look through all 116 pages of photos, but it looks like you can run just about anything you like on this layout.
That's why I think it'll be a good show layout. A lot better than me explaining everything there is to know about Waterloo IA. to a bunch of show goers.
I'm am missing a RI tie in so I may need to rethink the other side. I just don't know how many other arrangements will give me the return loop. But I don't want to give up the MSTL/CNW, SOO, MNS, GN/BN (I could mix in some TCW as well) that it's setup for right now.
Can't have it all I suppose.
Jason