2xPSU for 6-7x MSI GTX 1070 GAMING X with 6+8 PIN connectors

I have problem with my PSUs. Now I have 2 x Corsair G750M,

http://www.coolermaster.com/powersupply/modular-gm-series/g750m/

as you can see it has 4 x PCI-E 6+2 PIN per PSU and 8 SATA.

But GPU have 8 + 6 PIN connectors which means I need 7 x (1 x 6 PIN + 1 x 8 PIN) = 7 x 8 PIN + 7 x 6 PIN cables.
I could get one card somewhere else but still I would need connectors for 6 cards so 6 x 8 PIN + 6 x 6 PIN

Anyway to connect that? Any other cheap 2 x PSU config that have enough PCI-E cables?

Buy cables? (Now I have at least 20 characters!)