E3DV6 light direct drive head

This is light well balanced direct drive head which weights around 215 grams.
Pros:
Light weight (lighter than original bowden Sapphire PRO head 252 grams)
Well balanced
Belt tension iterated
Easy belt tightening
Easy and tight mount of the E3DV6 hotend
Short path from extruder to the nozzle
Good cable management
Minimum additional parts needed
Low cost
(For Sapphire PRO printer) Y axes become 170 grams lighter

Cons:
No BLTouch supported
(For sapphire PRO printer) Noise slightly increased, I think this is because of plastic mounts for X and Y motors. 1 mm rubber washer between motors and mounts may solve the problem.

Main housing require support on the flat surface (see image).
Otherwise all parts are supportless.

To install this head on the Sapphire pro printer additional parts needed (use Sapphire PRO stl.zip).
This project may require some minimal mechanical skills, such as sanding, drilling, adjusting, finding solutions for mysterious situations.
Detailed i