Based on my V5 design comes the shortest E3D fan shroud available!
Note that you do not need to use a zip tie. The fan shroud will slide onto the heat spreader and stay on by itself but having the option to secure it even more is always good. It can also be used to hold the cables secure like shown in the photos.
!!! WARNING !!!
The heater block is very close to the bottom plastic so please use ABS or any other high-temperature tolerant material. PLA will most likely melt!
If your screws are too long, one of the bottom screws will come in contact with the heater block! Make sure to install a shorter screw or remove the screw completely or else you might damage your fan!