I currently have 8 Bitmain Antminers on the way and I am in the United States. Looking for some experienced miner help - currently I am planning on ordering EVGA 1600W P2 Supernova power supplies for my miners, but given that they are A) Expensive and B)More powerful than they have to be for an antminer. Are there any ideas for 120 or 240v PSUs that are cheaper and work well?