Bambulabs X1C - Spoolholder alongside backplane

I need the spool mounted alongside the backplane of the printer, so I have remixed the nice design fom BC. In fact only the spool-roller was untouched, the mount itself has been redesigned.
It should be possible to further reduce material-usage, so feel free to optimise.

Layer height: 0,20; Infill 25% Gyroid; 4 perimeters; top/bottom-layers: 3; printed in ABS without supports; 
the spool-roller and the console have been printed with supports in PLA.
 

the additionally needed screws, washers, etc are in the pics.

Fusion360-parametric file is included.

20230410 - edit: changed to fit 3DJake 1kg rolls and adapted tolerances for better fit.