As you and other people or guildmates get gear, PvE content starts to become trivial to the point that I right now just place Renovatio on the tank and other players when needed and act as a 4th dps in RHD situations. Havn't had a problem healing as a hybrid pvp based priest so far in PvE Arena or Baphomet Hardmode yet.
Knowing fights or knowing when damage is coming will probably be your biggest advantage if you are afraid that you arn't going to do enough healing as a hybrid priest.
As far as your build goes, leave all your dots at level 1. The increase in damage from leveling it up is so trivial. Oratio only goes up by 1% for every level up so yeah...
If you're going hybrid, you can put the 2 points in sacrement into something else, maybe work your way to archangel. Archangel is good for when say a boss does a large aoe on the group which only happens every now and again. Archangel also it powers up your damage as well as your healing so it's even more useful for hybrid priests.
Gloria is debatable, totally up to you to leave it at level 1 or max it based on your playstyle and how many points you have left.
This is my build based on my playstyle.
http://www.ro2skills...BdDrbdBeDdBqBqA
Edited by Squachie, 02 June 2013 - 09:50 PM.