I would like to sell everything together but if I get a buyer for just the miner than the price of the PSUs would depend on that deal.

For tech specs of PSU:

Corsair 500W:  http://www.microcenter.com/product/399981/Builder_Series_CX500_500_Watt_ATX_12V_Power_Supply
EVGA 500W:   http://www.microcenter.com/product/416677/500B_500_Watt_ATX_Power_Supply
Coolmax 1000W: http://www.microcenter.com/product/407836/ZU-1000B_1000W_Modular_ATX_Power_Supply