Hello,
This is Bogdan from Romania.
I'm a mechanical engineer, 3D designer and modeler.
What you need is to slice the 3D model which you have, and the output format should be dxf/dwg for cutting (best cutting for such models is water jet - it could handle different kind of material, the accuracy is very high, and is not require any finishing after).
What I need to complete this job (beside awarding me the project :)) is the 3D model (iges, stp, sat, stl) and the thickness of the layer you wish to use (thinner layer - more accurate reproduction of the shapes/model)
Regards
Bogdan