Here's the thing... the more people who get in on a group order, the more the price will go down. We just did this with a helmet purchase, which helped a lot. The thing here would be finding a manufacturer who would do it. And if nothing else... an option might be to switch material... go with plastic rather than metal. Those 3D printers can make quite a few things... a scad of these probably wouldn't be much for one... the only trick will be making the mechanics work. With the new plastic paint that they have out that is metallic, it would look like metal when finished.
http://www.youtube.com/watch?v=ri2SN6JDF5I
They can do it in silver or gold... very cool!