Printed with 20% infill (I'm sure its overkill)
PETG
Only support needed is on the angle bracket. I used “paint on supports” in Prusa Slicer, but you can also just add them everywhere for simplicity's sake.
I included the model files in case anyone wants them
Also included assembled files - However, I printed all parts individually - This allows you to rotate the base, so the plug is in an ideal location for your application.
Mounts with 2 screws and has just enough clearance to get a long screwdriver bit in place
Let me know if you have any questions.
The author hasn't provided the model origin yet.