Rhodes Chroma Polaris

Sorry for the long title, couldn't think of something shorter at the 
moment.

My left side buttons aren't working. I've found out that this is a 
common problem with this board. I thought it was the buttons 
themselves and went out to find any place that has replacement 
buttons. I then realized, when I had the board open, that the thin, 
clear, flat-circuitry like ribbon cable, connecting the two control 
panels was broke. Both might be broke,(or split from being too 
brittle), but I know at least the smaller one is for now. Does anyone 
have any ideas on where to start with this. I went to a local 
electronics store but they couldn't do anything because they said it 
was OEM/propietary and they wouldn't have the parts. I was about to 
start calling some flat-circuitry places around here but then thought 
I would try the forum first. Any help would be appreciated. Thanks 
for your time.  Kris.