What is your general spell rotation for a pull? and what aura do you use? seals, etc?
I did it for the first time last night, and had ret aura, and would spam concecrate and try my best to use JoW and SoW. Each mob i pulled had an average of 10-12 undead. but i found myself with no mana and barely any health by the end of each pull (i dont have any of those items you linked yet)
I use Retribution Aura, Blessing of Sanctuary, Righteous Fury.
I only judge and seal wisdom, since that's what I'm always out of.
I usually start by using "Turn Evil" on an elite mob on one end of the room, then run to the opposite end of the room and use exorcism to pull another group. I try to do it so the feared mob runs through other groups and aggroes them too and the same with the exorcised pull. Once they're all after me, I back myself into a corner so that they can't hit me from the side. You can't block hits from the side or back.
You have to keep cleansing yourself to get rid of DoTs.
You have to play it by ear to see if you have enough mana to use holy shield and consecrate the whole time. Your aura, blessing, and shield should be putting out plenty of damage. I also have rank 1 consecrate on my toolbar that I sometimes use to save mana.
Without the [Figurine of the Colossus]
trinket, it won't really work as a protection pally. A holy pally can usually do it without the trinket because they can heal themselves through the hits and just outlast everything.
The [Petrified Lichen Guard]
with [Felsteel Shield Spike]
is pretty important too because you want stuff to die as fast as possible from hitting you.
I also have a [Darkmoon Card: Vengeance]
that I sometimes use instead of my Jewelcrafter spell damage trinket and that seems to pump out some extra damage too.