I don't know just which parts are needed, but some parts can be had from:

  Al Moersfelder
  7832 W. Drexel Ave.
  Franklin WI 53132
  414-425-0441

He'd be the one to ask what's available, and to collaborate with
on pieces that are really 'in demand', and to get cobs from.

He's not on e-mail -- probably doesn't even have a computer!

Nancy Fratti  (MusicBoxLady@Juno.com)
Panchronia Antiquities
PO BOX 210  -  Whitehall, NY 12887-0210
518-282-9770;  518-282-9800fax
http://www.quikpages/P/musicbox