Original model was good, except for the hinge, it's a perfect candidate for printing in place.

That's my first print in place model, so any hints, makes, comments are very appreciated! 

Print settings

PLA

0.2 height

3 perimeters

30% infill (basically only on the hinge)

V1: looser fit for anyone that has to look for bigger tolerances, can't be separated

V2: tighter fit, perfect if you have fairly well tuned printer

@update: I've uploaded both versions with drying holes