After cutting out all the holes with the fretsaw and hours of filing later...
The holes are all a perfect match now, and I started glueing some parts.
...and allways remember, that the world is an orange!
Cooltek/Jonsbo U1 | Silverstone SX500-LG | Noctua NF-R8 Redux 1200
Gigabyte H97N-WiFi | intel i7-5775C | Noctua NH-D9L | Crucial Ballistix 16GB DDR3L1600 | Crucial MX200 250GB | 2.5" WD AV 1TB