Build a super dedicated, fully cooled, fully wired, LARGE space with room to move about data closet on a raised floor.
I'm in the camp of a consistent temperature, regardless if it's 72 or 80 degrees, doesn't matter to me.
Everywhere I've worked aside from datacenters, has had power outages and then concerns about condensation forming on/in equipment.
More resilient power to the AC unit with a properly setup UPS to shutdown in the event of a outage seems way more important than the rest.
I don't disagree with having space to work.