His name is Jeff Kaplan and her specializes in making BMW speedometor gear replacements.They will be hardened plastic, like the OEM ones. All he needs is an original gear to use as a template. This is his his email(don't laugh)

hamonbagel@yahoo.com

Let me see if I can find his webpage.

"Eagles may soar high, but weasels don't get sucked into jet engines."