The one above the ram is slightly higher but still no issues with the side panel.
I was going to get the NA-HC4 chromax.black covers originally with a regular D15 but then they released the D15 chromax.black which made the heatsink black by default so I kept it that way. Think it fits with this build but it definitely wouldn't hurt having the covers, it will only make it even nice/smoother.
I would say go for it!
The covers increase the height of the heatsink by 5mm (from 160 to 165mm) and the width by 3mm (from 150mm to 153mm) - according to noctua.
CPU cooler max height 170 mm - according to fractal design
So yes there will be enough space but only just?
Thanks for the suggestion - I'll check it out! I got some extra cables lying around so I'll figure something out.
Btw the Raijintek Morpheus II Core Edition looks badass and would look indeed killer in this build.
Maybe a future upgrade?
Go for it - you won't be disappointed. Running all the fans in silent mode atm and sometimes I'm not even sure the PC is on!