For those interested in the rare RS-232 serial cable for the MP900/900c and I believe the Sig.
I do know of someone I have done work with and have helped to make a few of these cables. He travels more than I do and over in China happened to get a few remaining rare serial connectors to make a few cables up. I convinced him to sell a few on Ebay
(which he hates the company
) think he only has 1-2 left to auction off. These are hard to find as parts are no longer available just a rare find getem while/if you can.
There are a few being sold via Ebay
ebay auction link
Item number: 260255692728