The best thing to do is to call Digitec customer service and ask for a subsequent delivery, this is much quicker than waiting here for an answer from a Digitec employee...
Housing: Max. Length graphics card: 425 mm
Graphics card: Length: 28.20 cm -> 282 mm
Should therefore fit in easily.
"Fan", actually this is a water cooling unit, but oh well.
The water cooling is 48 cm long
The case is about 50 cm long
Should actually fit in exactly.
Yes, the following fans are possible:
Fan configuration
Enclosure front:
3x 120 mm fan or 3x 140 mm fan or radiator (optional)
Rear of case:
1x 120 mm RGB LED fan (pre-installed)
Top of case:
3x 120 mm fan or 2x 140 mm fan (optional)