Trinus - Titan Aero Mirrored Mount / Fan Shroud (remix)

I really loved that someone had already came out with a Titan Aero (Mirrored 12v) mount, here is the original one I started from:

Kodama Trinus E3D Mirrored Aero Titan Upgrade
http://www.thingiverse.com/thing:2179027

It's a great model, but I wanted to accomplish 2 things with this remix:

* Allow a user to make use of a slightly wider stepper motor, specifically the one that came with the Trinus extruder assembly.
* Make it so that this is easily to dismount without the need to comple