Tunnel Mania

I am presenting this project out of order, for no real reason. We actually built a model of this first then did the drawings. I will post the model next.
The object of this project was to "tunnel" through a solid mass that is 64'x64'x192', and to create a pathway or a journey for a person to experience. We did this as a model at 1/8" scale, so the actual model is 8"x8"x24". Then we did actual size drawings of the models in ink.
My goal was to explode or pull as much of the interior mass through the entrance and exit, leaving catwalks for the pathway. Then it evolved into a kinetic, moving experience that the subject triggered by stepping onto a gigantic lever that powers a gearbox. This causes the entrance to move in about 40 feet while at the same time the exit pushes out, and also completes pathway connections. If you cant see it in the drawings, the model should make it totally clear.