So, as it turns out, the Shift X doesn't 'support' the radiator fans being on the actual front of the case... Panel doesn't fit on by about 10mm
And as I didn't have the fans ordered before I did my loop, I didn't even consider the clearance....
Which now means i'm going to have to re-do all of my bends so I can mount the fans on the inside
Top Tip: Think, then think again, then think some more, then do some more thinking, then do