PvP 0/7/54 http://www.wowhead.com/?talent=hZVbZxcetVestez
Note: Restoration with Guardian Totems. If you want then move two points from Ancestral Healing for example, to imp. Ghost Wolf for extra mobility (run away to drink).
PvP 8/7/45 http://www.wowhead.com/?talent=hxcZVbZxzjtVcstez
Note: Restoration with Elemental Warding and Guardian Totems, missing a bit of healing power compared to builds with more points spent in the Resto tree.
Global note: I see Ancestral Knowledge as the most useless talent ever, hence every build with points in Enhancement has Shield Specc instead. Feel free to pick AK if you like it more.
AK will give you extra 500-600 mana, that's enought to cast ONE LHW per fight. And you say it's worth 5 talent points? Hell no.