Here is where I post whatever I have been working on. These days, it is the Free-Mo N layout at the Northwest Crossing Operating Model Railroad Club..
Tom,How will you use the 4 modules if you don't really have anything on them to use for OPS? It seems like you have to add the additional "wings" to get any good out of it. What will you do if you don't have the space to set this up? Have you thought about compression?