Mount an E3D V6 hotend onto your Ultimaker 2 or 2+. Attaches with cable ties (zip ties) and a single screw. Simple.
Mounting points for all three fans: 2x original part fans and the E3D heatsink fan. Use the screws you're using now (The part fans only need two screws each).
I used a small self-tapper to attach the latch.
I printed this in Colorfabb XT and it hasn't had a problem. Print front-face-down without support. I used 40% infill for strength.
The author hasn't provided the model origin yet.