[vishnu]

Those are 68 pin D-Sub connectors? If you could find the right ones, they're not expensive, and it would be easy to make your own with a chunk of 68 pin ribbon cable. My guess is that you'll find the right ones in this list:

https://www.mouser.com/Connectors/D-Sub-...?P=1ytkn36

Depending on ambient EMI wherever you end up using it, you might need to run the ribbon cable through a chunk of braid for noise isolation. Unless you've got your own shield room. 8)