Best PSU for handling 2 Quadro K6000s

I'll be getting 2 of these: Quadro K6000 graphics cards,

and wondering which of these PSUs might be best at handling them (and why):

Rosewill 1600W Intel Haswell Ready 80 Plus Silver Modular Gaming Power Supply HERCULES-1600

LEPA G Series 1600-Watts ATX12V/EPS12V SLI Ready Crossfire 80 Plus Gold Certified Full Modular 240-Pin 1700 Power Supply (G1600-MA)

Coolmax 1600-Watts 80 PLUS Power Supply with Active PFC, Silver ZPS-1600B

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Rosewill 1300W 80 PLUS GOLD Certified Power Supply LIGHTNING-1300

EVGA SuperNOVA 1300G2 ATX12V/EPS12V 1300W 80Plus Gold Power Supply 120-G2-1300-XR


THANKS!!

What's the rest of the system going to be? Per Nvidia's specs the K6000 board power is only 225W, so to be honest on a fairly standard modern subsystem a decent quality 750W PSU will probably be more than sufficient, with 1kW giving more than adequate headroom. 1600W is massive overkill....