Post author (and noob cliche printer) here. I am, in fact, interested in virtualizing the end product, for tasks ranging from closer analysis, virtual restoration, computer vision work (see links in the post and elsewhere on my site) and conceivably, for reproduction by a 3d printer or industrial prototyper. However, we do already have cheap, robust and high-quality methods of making a printing surface from a printed impression or artwork, notably photo-etching in metal or polymer. So I am not sure what 3d printing would give you apart from the satisfaction of closing the circuit.. but it's on my list of things to try, alongside stereotyping with papier mache.