good luck, main cost will be in wiring / cooling infrastructure.

I'm guessing you're around Morman Lake in middle Washington for the .03c per kw price point.

One thing to consider is can you add additional service to your address (additional power) - call the power company and check time, and pricing (easy way to take a 5k square foot warehouse) and make it handle 1mw+ of power

Second, consider your wet bulb, Washington state (west of cascades) is high, out east, relative humidity is low.  You can get away with evaporate cooling easy enough and cheaply.

Third, if mining goes south, whats another high yield / power hungry industry in your state (Washington) that is now legal? With all the circuits, power and the cooling, consider splitting the investment between bitcoin mining and a growing operation.  This might possibly be the best way to guarantee the FBI would kick down your door, but hey, you would be doing everything legally!