Hi OP, I was thinking about your site plan ..
2/10/17 - Engineering design completed. Site plan received.
...
Well, I think Bitcoin mining farming is no different than the traditional datacenter industry and I think they are doing a great job at building and scaling their massive computational workloads.
One of the aspects that comes to my mind is the cooling systems.
"A significant portion of data center inefficiencies systems from cooling overhead, with chillers being the largest culprit. Cooling losses are three times greater than power losses, presenting the most promising target for efficiency improvements: if all cooling losses were eliminated, the Power Usage Effectiveness - PUE would drop to 1.26, whereas a zero-loss UPS system would yield as PUE of only 1.8. Typically, the worse a facility’s PUE is, the higher the percentage of the total loss comes from the cooling system [BM06]. Intuitively, there are only so many ways to mishandle a power distribution system, but many more ways to mishandle cooling"[1]
Saying that, another day I came about with that idea of optimizations that can be done at datacenter floor designers such as the idea of "Server Dome"
Beyond ServerDome: The bizarre-looking data center that saves water and energy
https://youtu.be/A7fKmlTeHJk
https://serverdomes.com/faq/
What the OP think about that idea? Also I was wondering if it's possible to create a small model, lets say using 5 old Antminer S9 rearrange then on "Server Dome" configuration and actually perform some measurements?
[1]Luiz André Barroso; Urs Hölzle; Parthasarathy Ranganathan; Margaret Martonosi, The Datacenter as a Computer: Designing Warehouse-Scale Machines, Third Edition , Morgan & Claypool, 2018.