Correcting the Pathfinder White-Haired Witch

So to follow up on my recent post doing a White-Haired Witch class for Old School Hack, I thought I would look into how to do this class properly in Pathfinder.  The version in Pathfinder is an archetype for the Witch class.  Sadly, that version would not play anything like it should.

1. Start with the Unchained Monk as the base.

2. Add whip to the weapon proficiencies and replace the crossbow with bow (longbows and shortbows)

3. Replace the Stunning First per-level abilities with this set of hexes and variant abilities:
     1st Level: Prehensile Hair (as the hex except attacks with hair do the same damage as normal
     Unarmed Strike attacks for the witch's current level)
     4th Level: Mythic Strangling Hair [treat as a hex] automatically activates when the witch uses her
     Prehensile Hair
     8th Level: Evil Eye
     12th Level: Poison Touch
     16th Level (Blind or Deafen as Stunning Fist, but only when using hair attacks)
     20th Level (Paralyze as Stunning Fist. but only when using hair attacks)

There, that should play a lot better.