If I remove the Zotac from this rig. And do it this way -
AX 1200i - 5 cards 150 watts ea. System and 3 risers - total - 1000 watts
Antec 1000 - 2 cards at 150 watts ea and 1 card at 170 watts. Plus 5 risers at 250 watts - total 720 watts
Would work for now?
With two 1000 W PSU you should be able to run 9 1070 without a problem if you adjust the power limit on the cards. Where are you getting your power consumption values from? For Nvidia cards, the power consumption shown in software tools includes the risers. For AMD cards, you need to add 40-50 W for the riser. You need to get a power meter so you can measure the actual power draw from the wall and divide the power across both PSU's evenly to keep them at an efficient power level.