Does the model D send any CV/Gate out?
Inputs only
The Mini has an S-trigger out, but that will only trigger Moogs and accessories that accept S-triggers for gates. A circuit would be required to convert the S-trigger to a standard gate.
The keyboard CV out is a simple wired modification, but would need a jack located on the back. The keyboard CV mod was common back in the 70’s for adding the original Oberheim SEM. Since the SEM acceted S-triggers, only a cable was required to trigger it.
Any CV inside the Mini could be tapped if needed.
But on a stock Mini, the only outputs are the S-trigger, accessory power, and audios.
Thats a crazy looking mod, what is it? Not familair with that type connector. A four conductor CV and gate out?
MC… point taken. 
However the S-trig INPUT can be used as an output.
It just doesn’t have a lot of current capability, whether sinking or sourcing.
I’ve never tried driving an SEM from a Mini’s S-trig input.
Perhaps it will work, but without either a follower or inverter stage added, it won’t work with many other devices.
Multing S-trigs is a quick way to lose current as there’s no general definition of how much current the “standard” requires.
It even vary amongst Moog’s own products.
It might be usable better as a Gate or S-trig out if a buffered inverting or non-inverting opamp was used, but then one must power it somehow.
At that point, one should probably mod the Mini correctly instead.
Any CV inside the Mini could be tapped if needed.
True, but a Mini also has a standard Gate (V-trig) provided inside if someone is going to mod their Mini anyway.
It’s a more common standard than S-trigs.
Might as well use it, as it’s just one wire to add.
Also, while adding CV out is just as you say above when driving something like an SEM, like the gate or S-trig, it can’t be used well when pushing some loads like long cable runs or multiple destinations.
It can get loaded down.
Since the Mini has totally discrete CV and Gate/S-trig circuits, don’t expect them to drive much.
I’ve run into situations on large modulars where driving banks of oscillators, filters or envs can cause these signals to droop.
Triggering may stop and CV’s may be “short-scaled” and not track very well.
After 4 or 5 destinations are multed together, a Mini will not make a good controller.
For situations like these, an opamp driver stage is recommended whether the signal is CV, Gate or S-trig.
It is even possible to rewire a Mini’s CV and Gate to an accessory socket and build an opamp buffer stage for both signals using a dual opamp.
It isn’t work recommended for a beginner, but if carefully made it can all fit in the Cinch plug.
It leaves the Mini without holes drilled in it and the capability to drive most loads and cable runs.