Looks beautiful but the Psu is a bit overkill for this unless you populate it wth Gtx 1080 ti cards. In fact I think that would be the most effective cost in long term as I am sure bitcoin price will go up. Unfortunately 1080 ti is still very expensive on the market. There are cheap miners being sold on ebay and even with a cheap price no real demand is seen. I see those ads from a long time now. I have bought one from there and I am happy with it.
well it gives you the option to put 1080tis in there. as for ebay you may have been lucky. we've been buying other miner's rigs lately and have been astounded by the lack of care the hardware received.