Massive thanks to Silverstone and TeamGroup for sponsoring this build for my wife. I didn't expect the case to be that challenging to cable manage and build a full loop into but I am glad everything worked out, the cuts in my fingers are nothing compared to the satisfaction of completing this build.
My first draft involved placing the pump/res on top of the bottom fan, but I found it too normal, and it would take the attention away from the other components, so I hid it up top. It also took a while to sleeve the PSU since I didn't have a lot of extra time, but it turned out quite well. In the end, I had to remove the combs to cable-manage everything to the tight space. I then made a PSU shroud to hide the rest of the cables beside the power supply.