Yes, contact Russ Knotts. He rebuilds them.
http://www.justrealmusic.com/content/about_us.htm
There is someone else also. I'll need to do a little research because I can't remember who it is.
http://www.justrealmusic.com/content/about_us.htm
There is someone else also. I'll need to do a little research because I can't remember who it is.