Some mock up picks. It was already very hard to get the P/P rad in the bottom, as even the wires could not fit under the radiator. I will mount it like it is now, pulling air from rear to front. The reason for that is that my racing rig is next to my PC and otherwise it would blow hot air to an already overheated driver
Also the openings in the plexiglass door are right there, providing the exit for the hot air. The door in the rear has vents, but they will most likely block a part of the hot air and that would accumulate behind the motherboard. Therefore the direction from back to front is the better solution.
These mock up pics only show the basic waterloop configuration. I still have to mount all the PC hardware. But if any drilling has to be done, now is the time to do that.
I have to mount the bottom radiator first, as it will be almost impossible to lift once the case is standing up.
When i created this idea for "project overchill", i was not aware of the tight fits. Even for a big tower, like the Cosmos II is, watercooling uses all the space there is. The good part about that, is that it will look nicely filled when ready. Normally you can house 2 refugees in there.