Clearly this is an option.- At some point when funds permits it, install a monoblock for CPU and VRMs.
I would work more on airFLOW, than I would worrying about the minutia you're stuck in. Front/sides = intake, top/rear = exhaust. You can play all you want (encouraged!) but the difference will only be a couple of C.
The point of mentioning a monoblock earlier was simply to describe the parts that actually need to be cooled.