The mk8 is a direct drive extruder. It is very simple in its operation and capable of printing a bunch of different filaments. The stepper motor sits directly on top of the heatbreak and there is a very short distance between the stepper motor and the nozzle. Because of this design, the mk8 extruder can handle printing flexible filaments and works well with retraction. When you move to a remote mount extruder setup You will hurt this performance. IMHO just because someone has an idea up on thingiverse doesn't mean it represents an improvement on your machine. You need to print a bunch of stuff with your machine first to get an idea of a baseline on how you are doing to start. So you will then be able to see how these changes impact your machine.