Which 3d printer are you planning on using and would you mind releasing the 3d file if it all works out? I was tempted to try the same, but haven't got the printer yet 
From here "Tiny size of 140x100mm, fits any mini-ITX cabinet"
I have a small eMaker Huxley, but have almost finished (just waiting to get the extruder parts that can't be printed) building a new one capable of a 200x200x160mm print envelope.
@Mike, could you pop on here the page once it is up, i'll keep looking myself but in case I miss it! :lol: