The project is finished now.
Some pictures from during the build:
Spray painted the sides + bended a top cover plate.
Mounted the front plate:
Inside:
Finished:
Placed on the location of the old exposure box:
With the slide out:
Open:
Clamped PCB:
Files
PCB files LED panels: Download
PCB files timer: Download
PCB files power supply: Download
Available Products:
Dutch 
