So many seem to say they have ideas but is their a company that will fabricate a design for a customer and if so how much would that cost?

From design, to material, to unconventional items, to creating new magnet shapes, etc.

I saw 3d metal printers which can make elaborate metal parts, but those are far away for public use and would cost some say 100 times more than a regular plastic 3d printer.

But again with out costing an arm an a leg.

For example something like this accurate non common items but with magnetic bearing, in a vacuum, and other extra things to improve it.
 (from the post #12 "Theory, my chalk board".)
http://open-source-energy.org/forum/attachment.php?aid=37

Sorry no one has answered you wsx, you could make a part with the lost wax casting process, or print the part in abs plastic then use the lost abs casting process.:D