Material needed:

• PTFE tube, 63mm
• Brass Insert Nuts 2 x M3 (Length 3mm, Outer Diameter 4.2mm) for the ADXL support
• Brass Insert Nuts 4 x M3 (L 5.7mm, OD 4.6) two for the anchorage to the base plate, and two for assembling the extruder to the support piece.
• Screws 2 x M3 (L4) for the ADXL support
• Screws 4 x M3 (L8) for both the anchorage and assembling

Print the piece as it's uploaded, no supports needed. Better in ABS or PETG for the chamber temperature. I printed it with these parameters:

• 0.4mm nozzle
• 4 wall loops
• 5 top shell layers
• 4 bottom shell layers
• 25% sparse infill density
• Layer Height 0.12mm (but it should work great with 0.20mm)
• Brim if you need it

I share both STEP and STL file formats. Remember STEP gives better quality when printing, and you could use it to modify the design at your needs.

Your opinions are appreciated.
Added two versions (no cable holder nor text, and no cable holder, nor text, nor ADXL)