I found soap boxes for 1 Euro in a drugstore. The perfect housing - look!
What you need are sharp drill bit, a fret saw and warden file.

Completed housing with hub

Different soap box

Mounting

Parts

Spacer for SD card - non electro static foam

Bottom

Top
All parts inside are floatend, hold by the connectors. The cover is a little bit snapped in.
Rabis49