Build a header / socket
I've done this Several times: confronted with a connector I CANNOT buy:
> Find pins / sockets that fit
> Put a surrounding barrier on the connector
> Put a protective barrier (diaper) over/in the connector to mate to
> Spray the area with a light silicone lube
> Set as many / all mating connectors needed
> Fill the area with hot-meld (epoxy if you're Bold)
> Shave & form resulting block as new connector
It looks strange, but works. Be careful with building sockets that the filling component doesn't have the viscosity to goo up your sockets. Sometimes heatshrink barriers around the sockets is called for. Good Hunting... <<<)))