The set up doesn't look too bad to me, but make sure you try and balance the air flowing in / out. It's all well and good sucking X amount out, but if there's not enough flow going in, those fans will be limited in their capacity to move air / struggle. You have a negative 2120 CFM air flow in that grow tent, which will severely limit your air movement. Generally, you want it balanced (what goes in, come out) or slightly negative so that the heat is sucked out.

Also, once the air goes out of the grow tent, where does it go? This air needs to go OUTSIDE! You CANNOT keep that many miners and the room cool with just AC. You have to vent the hot air outside.

As others have said, HEAT EXTRACTION is far more important than cooling.

You could also use outside air for your intake too through a window or something? Even in Texas with 110°F / 43°C heat in the summer, that air will still cool the miners that usually run around 140-158°F / 60-70°C.

Maybe you could rig something up at a window? By some dryer vent / HVAC hoses and create something to allow air from the bottom of the window to be sucked in, and hot air expelled at the top. Remember to be careful of rain getting in etc.