Vintage Synth Repair

I've determined that the dead keys on my D-5 are caused by breaks in  
two of the tracks in the keyboard contact strip - one of which is  
several millimetres across due to something corrosive being spilt on  
it.  The contact strip isn't available as a spare part any more, nor  
is an entire keyboard.

Is there any way to bridge these tracks? My first thought was  
conductive pens but the tracks don't seem to be right on the surface  
but rather encased under a thin plastic layer.

Failing that - does anybody have a fully working D-5 contact strip  
they'd be willing to ship to Australia?

Thanks,
Lindsay