I did not like the hotbed-cable of my K2M attaching thy Y-motor and found this cable chain: https://www.printables.com/de/model/688059-anycubic-kobra-2-max-cable-drag-chain

Anything works fine for me but not the bottom mount, so I designed my own one. I is not perfect but it works and I do not want to spend any more time in this.

If it helps anybody I would be glad