I can't imagine having to share rooms with the racked gear and yet that's what I'm doing while still building out the DC room, not fun ha ha!In my case there is only one real goal... Reduction of wife complaints.
1) the xeon phi's come fan-less and require proper server rack type fans to keep them cool so lot's of noise.
2) I could use any of a number of large heat sink fan combo's for the CPUs rather than a water block but if I already have the rads and water blocks the price of a water block for the cpu is about the same as a large quiet heatsink/fan combo and what the heck.
My server room and my office are the same room. If I had 4 or 5 of these beasts running, which I hope to, I suspect you would have no problem hearing them from upstairs using a standard rack, with servers fans configuration.
I understand your goal 100%