Sequential circuits samplers

I found a ribbon cable.  It is only a 16 pin ribbon cable with a dip
connector at the end.  I bought one from a person selling Apple parts
(these were used on Apple IIs), but if you aren't in a hurry and you
need one, then it would be cheaper to find (or make) a 16 pin ribbon
cable of desired length and then buy the dip ends which are readily
available (and cheap).

However, I still need a copy of the instructions that came with the
upgrade.  

I have the jack board and the op-amp board and can clearly see how
they connect via the ribbon cable, but I am at a loss on how to mount
these boards inside the machine.  Also, the op-amp board has several
(4,5,4) wires that looked like they need to be soldered on the voice
board somewhere.