Im sure most of you guys know a custom water loop cost at least 700-800 bucks just for the pumps, radiators, fittings, and just for cool the cpu and gpu. I read on post on overclock.net and someone asked if they could put a full waterblock on their GPU and take an AIO CPU cooler, unplug the CPU block and plug it into the GPU block. I had the same thoguht in mind because the cpu and gpu are really the only thing that needs decent cooling. And from what i hear, the M.2/NVME drives get pretty hot as well such as the samsung 950 pro and 960 evo. My asus hero ix has a spot on the bottom of the board where you can print out a 3D fan holder to keep the temps down on that, Im pretty sure i saw a waterblock for the M2 drives from aquacomputer.