At 2W/GH you realize how big your electricity bill will be right?
What is the cost kWh in the location you are settings up?
278 S1 Ants x 180GH x 2W = 100,080W
Standard home user rate of 15c kWh = 100kW x 24hrs x $0.15 = $360 per day or $10,800 per month.
Buying the 1W/GH S2 would probably pay for itself pretty quickly with half the power cost and it will be a lot easier to deal with half the heat.
This is really only a little hobby, and project for me. I have access to cheap power, 7.5c per kWh and a large warehouse. I figure since I have the space and capacity, the only thing left is cheaper PSU, any suggestions?
I have read about using the dell server PSU, but there seems to be a lot of work with getting them to work.
I am not sure you understand how electricity works.
So you are going to have 130 PSU that will need to be 1,000W minimum. What are you plugging them into?
The PSUs are not your problem, the heat may not even be your problem if the warehouse is large enough and the air cool enough.
You should start with 30 and see how you doing just powering the PSUs up. You need to be learning about transformers as you seem to think you could just get 130 "plugs" and this would work.