Do you plan on populating the internal HDD tray? If so, that 80mm front fan needs to push enough air through the HDDs and cool the passive heatsink when needed.
Maybe you might have issues if you have heavy transcoding on the CPU from time to time?
Low-rpm noctuas may not do a good job there...
So you can go the road more travelled: SV-X10SLH-N6-ST031-Supermicro 1U Firewall Server W/ X10SLH-N
Or less travelled but exciting: https://www.servethehome.com/our-switchnaserver-or-qnap-qgd-1600p-review/
So am not the only one looking at this...With the trend of the W-21XX and W-22XX CPUs also dropping, I might skip buying more v4s despite the prices now.
From a bird's eye view, single core performance is better and so to is power consumption. You also get more pcie lanes and rdimm and lrdimms...