Rockeros,
Did you build one from these pans? It would be awesome if you posted pics of your build and tell us what it cost you to build. Maybe even show some cut pieces.
One limitation I see has been finding reasonably priced 3-d CAD software that you can turn into g-code. It seems like if you really want to design something with complex 3-D shapes (like the arch of an archtop or a compound radius fretboard) you need pro versions of CAD software that all cost between $800 and $1500. The few budget 3-d cad software I have seen seem to allow you to build simple shapes, like a tube from a circle, but not complex shapes.
there's always another way to aquire that software..