I have an FSSK and R2 BSSK on order and I’m also seriously considering ordering an F77.

I’m getting a set of dust covers made for my keyboard collection and would like to include the keyboards I have on order from Model F Labs. The dust covers include a slot for a cable outlet, and I get to specify the position of that slot.

Could you please tell me how far along the back of the keyboard case the cable outlet is for the FSSK, BSSK and F77? It would be very helpful if you could let me know whether the measurement is from the rear left corner or the rear right corner of the case. I’m in Europe, so millimetres preferred :).