Stuck on 120V here, looking for powering solutions.

The APW3++ gives 1200W.  Any reason I can't power two hashcards on one S9 from one, another two on the other S9 from a second, and both remaining cards (one one each S9) plus the two controllers from a third?

Powerwise it works.  Any gotchas I haven't considered?

Is there a FAQ anywhere for recommended PSUs for an S9 running on 120V?

I've found a couple of (expensive) 1600W PSUs on newegg/amazon, and used IBM DPS 2000W on ebay.  Anything else?