You will need a dedicated 200 amp service panel. Seal the structure. Bring fresh air in the the bottom and blow the hot air out off the top of the structure. Don't bother trying to use ac's to cool. Just keep pulling air from outside and removing it off the top. I run my 6 card miner rig off of a 15 amp dedicated circuit. I'm running 4 rigs each on a 15 amp breaker using #14 copper wire right to the panel

If you move enough air, and have your electrical correct all is well.
Give us some pics of what ya got goin on