It will work, we did a similar illusion one year. Our guest walked on a 2x6 laying on the floor with 4x8 ft mirrors on each side of it,we put a static dummy in the rafters of the building around 15 ft up with a strobe light on him,then we used pallets to build the sides up to the dummys location to make a "shaft". the refection looked as though you were crossing a Deep cavern with only a 2x6 to walk on, very scary to some people & highly recommended.
Slaughter.





