Looking for the Covox Sound Master board

[Yoruk]

Hello there,

 

I'm (desperately) looking for someone who have a Covox sound master board (the apple II model):

 

I am trying to make a clone from pictures, but I'm missing some (important) tracks under some ICs.

 

I already asked in a lot of places, but that this board looks very rare.... Maybe it will be my lucky day here ! ?

 

Thanks in advance.