I was not able to find a Titan extruder carriage that fully meet my needs so I decided to create mine.
For a starting point: My Z offset is -1.19
I also added the Titan cover I made when mine broke.
Hotend is a E3D V6 clone
Print fan is a 5015 common radial fan
This is the grill used on the hot end fan: http://www.thingiverse.com/thing:456602
This is the cable chain used: http://www.thingiverse.com/thing:611593
Screws and nuts holding the print fan are #6
All other screws are #4 self tapping
Bearings are LM8UU
Hope you like it!