Hi Galen,  You need to speak to the folks at Electric Orchestras, Inc.
Their address is:

  29962 No. Terre Drive
  Libertyville, Illinois
  60048
  tel 847-367-7996  (I'm not positive)

Their hours of operation are a bit strange but as I recall it's best to
call between 7-8 PM. If you have difficulty with his terms, I'll get the
parts you need.

Musically,
John A. Tuttle