Possible backdrop suggestion
Trainsteve, looking at the pics of your layout again--possibly you could gradually start with slight elevations, 1", maybe 2 or 3 inch foam or whatever and build up a slope or small hills up to the backdrop and have underbrush and trees with that section of the backdrop surface covered with a forest or mountain scene---then you could do logging operation in the foreground, or a farm, resort, campground etc. with the trees and brush to hide the transition from top of rise to vertical backdrop. Your cement plant is great , but it does use up a lot of room. One of the others suggested a grain elevator and I agree cause then you get to do at least two sidings and some killer weathering with maybe an abandoned, rusted grain car with weeds all around it. Sound like fun? Just a suggestion or two, keep going and show us your progress----John R