Direct Driven Quick Tool Change

I wanted to have a tool changing mechanism and a direct drive extruder on my CR-10. I ended up mashing several things together that were already great by themselves (Thingiverse wont let me link them as remixed). Now I print flexible filaments with ease, swap hotends instead of cleaning or changing nozzles for different materials and print with high speeds (thanks to Klipper).

The hotend-bracket has a mounting option for using the included fanduct, that is heavily inspired by https://www.thingiverse.com/thing:3091560, but using mostly .4mm walls. The original design should fit as well.
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How does it work?
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Put your tool on the quick change bracket in the holder, fasten it with the lever, slide the motor mount on, done.

What you need
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For the tool change thing:

m4×16 bolt, a nut and washer.
The lever from the original design(3369444)
(The bracket of the remix for making your own tool holders) (3816051)

For t