Update Oct 4 2018 : modified a bit the design of the body to make the thin parts at the bottom a bit stronger and added an optional support to attach a BLTouch sensor (offsets from nozzle +32mm on X and -2mm on Y). Part cooling fan is now attached by M3 screws and the fan shroud is attached by 2 screws to be better secured.
This is an  my Bondtech BMG + E3D v6 Print Head aka The Tank used by my friend Tom Jackson (@FilamentFrenzy) on his Creality CR-10.
All pictures courtesy of Tom Jackson. Fran shroud is from the Prusa i3 Mk3 (slighly modified).
There are currently minimal instructions here on how to put the print head together. Do not venture in this mod if you are not comfortable tinkering with your printer.
You don't loose any print volume with this print head provided that you move your Y endstop 8 mm forward.
You basically need :
A Bondtech BMG extruder (the design is compatible with both right handed and left handed ones)
A NEMA 17 Pancake stepper motor (25mm deep)
An E3D v6 hotend
A Noctua NF-A4x20 FLX…