I've spent over 4.5 hours to get to this point.

Essentially, I determined that the hotend cover would be more streamlined and the air paths would be more optimal if I placed the 6028s like so:

That red square is the X-axis endstop which I didn't account for when I made the 4-in-1-out cover. 

First it was taking the 8 inputs from the #SecSavr Select [gd0091]. Now this project is taking the slim and long designs seen in the #SecSavr Skyrise [gd0092] and the SecSavr Space (the printer that would eventually morph into the #SecSavr Sublime [gd0036]):

Additionally, I've modelled the Coupler Plate as well as the Hotend Holder:

Overall, I find it nice to think about how technology has advanced to be able to (idealistically) miniaturise Deckingman's 6-input hotend to a size that can be easily installed onto a CR-10, despite adding 2 more inputs:

I still have to model the part cooling though. Not sure if I should just do a basic blower or freshen up on the latest research in cooling ducts.