Ungleichklang: Lemur is really the way to go here. No need to reinvent the wheel - and think of all the time you save by using TK's pre-built interface.
Re. my build progress:
(I was pretty ill this past year... found out I have a genetic mutation (Gilbert's Syndrome) that makes me sensitive to chemicals, especially soldering :-/ However, I have an excellent soldering-slave who happens to be my spouse :D)
Anyhow, I just got my Formulor order and will soon have pics to show of my MIDIbox CV2 case :D :D :D
FIY, the case at Formulor.de cost 67e and the optional smoked-gray transparent windows were 17e. All the windows aren't necessary if you place 256 holes in the front panel, but I'm sure the price will end up being the same.
I'll post all my design files, BOM and notes in March.