Oh man Malte, that makes me nervous just looking at it!
You can do what I did. I think you have the Precision Plate, right? If so mount it to a price of MDF on the wall with 20mm holes.
If you have open studs, reach back and put a knob on the back. If you don't have open studs, mount a board on a hinge with some backer strips to keep it all tidy and more importantly... Safe!
Let me know if you need pics, I can take them while my shop is clear.
Cheers. Bryan.