Some other things to think about:
Power
Use as many separate circuits as is realistically possible.
See if you can get to where there’s only two systems per circuit. That’s a ridiculous amount of overkill, but would be worth it.
Any lighting should also be on a dedicated circuit.
Multiplayer Streaming
If this space is meant to be a venue for multiplayer streaming (esports or no), it shouldn't be thought of as “a home stream, but bigger.” At this size, it will have more in common with a Sports/TV Broadcast setup.
Broadcast
There should be a broadcast team who’s sole focus is on keeping the steam technically good, rather than trying to split their attention between that and performing on camera.
At the very least a Director and an Audio Engineer. Having a Technical Director (to run the video switcher) wouldn’t be amiss.
Video
Duplicate each monitor feed and send them to a video mixer.
OR Send all feeds to a video router that ten sends them back to the monitor as well as sending to the mixer.
Audio
Send all audio feeds (computers, headsets, room mics, etc.) through a sound mixer. It would control the mix for the steam, as well as sending headset chatter back to each headset.
Explore Dante Via as the method to do this; audio over IP is great, and you could still pipe system audio to a local DAC.
The sound engineer should be in a ISO booth so they aren’t trying to mix in the noisy LAN room.
