MK2s - MK3 Hybrid Extruder/X-Carriage

I really liked the new MK3 extruder head. Soooo, I decided to reverse engineer the MK3 extruder and x-carriage assembly to make it fit the MK2/MK2s. My main motivation was the clean mounting of the Noctau fan and the new nozzle blower.

Things I changed from the MK3 assembly:

1) Moved the motor mounting screws over a bit to accommodate the existing filament driver.

2) Created holes to mount the idler and made space for it. Had to modify the idler a bit to fit properly inside the new ext