Hello I've seen the diagram and i think it's good to keep running your miners. One thing I must suggest that you must have another electric motor on standby . You cannot run a motor continuously for 24/7 12months a year. It needs lubrication and maintenance too. May I know what types of motor are you using now?
I agree spare parts would be nice to keep on hand. The parts list is on the first post of this thread. I am using this one
One good option is the inverter has a built in battery charger that when all else fails it kicks in and will charge the batteries from your home power if you choose to connect this feature. The battery charger will then run the inverter and provide 150 amps of charge power to the batteries until the batteries are charged or your main charging source is fixed. Even running this charger is cheaper then mining directly on your house wiring it would cost about $150 a month for this charger to run 24/7
https://www.amazon.com/Dayton-3K771-Motor-60hz-Belt/dp/B001GBMNS4