Hi Tim, if true outdoor wet location use is needed, I’d look towards either the Elation SixPar Series or Chauvet COLORdash Par H12IP. Oftentimes the direct from China fixtures that claim to be IP65 don’t actually hold up properly in wet location uses. Another thing to keep in mind is that even though you’ll be outside at night, the amount of ambient light you’ll have to content with isn’t zero. Getting four of these types of fixtures on each tripod/totem would probably be about right as a point of departure.
As far as the whole “blinding” issue goes, in addition to what Dave said, getting your angles right really helps too. If the fixtures are pointed too “head-on”, yes, your talent will complain. Getting the lights up in the air and off to the side can work wonders in this regard. Hope this helps!