Holly, As I see it (and I'm often called 'blind-as-a-bat'), you are trying to cram a 10' dream into a 4' space. Try thinking of your space as a place to run trains that will then have a village around them. That is usually how the real world worked, and in a 4x10 space, it's going to be real hard to get a train up and down a mountain with any cars being pulled.
Chuck