Gestalt build going for immunities

[PurinaDragonCho]

I have this crazy build idea, and I wanted to put it here ot see if anyone had any suggestions to improve. The concept is a noble, holy soldier who has become tainted by obsession with fighting undead. Mechanically, I tried to come up with the best defensive abilities, with a preference for that over offensive capabilities.

I'm away from my books, so some of this might not work. By the way, this is for a silly campaign that we play only when someone is out of town for an extended period - so it's almost an exercise.

I'm considering taking Leadership and getting a follower who's a Bard 9/Marshal 4 // Wizard/War Weaver/XX. The idea of having a herald and entourage following the character appeals to me.

Any ideas? Thanks in advance.

1 Archivist 1 // Paladin 1 Sk Fc (Kn Rel), Weapon Focus, Scribe Scroll
2 Archivist 2 // Paladin 2
3 Archivist 3 // Paladin 3 True Believer (for Pious Templar)
4 Church Inquis 1 // Paladin 4
5 Church Inquis 2 // Paladin 5
6 Church Inquis 3 // Paladin 6 Feat?
7 Church Inquis 4 // Paladin 7
8 Church Inquis 5 // Paladin 8
9 Divine Oracle 1 // Saint LA 1 Feat?
10 Divine Oracle 2 // Saint LA 2
11 Archivist 5 // Pious Templar 1
12 Archivist 6 // Deadgrim 1 Feat?
13 Archivist 7 // Deadgrim 2
14 Archivist 8 // Deadgrim 3
15 Archivist 9 // ? Craft Contingent Spell

Aura of Good, Aura of Courage, Detect Evil, Evasion, Mettle, Cha to Saves, Still Mind, LLV, Darkvision 60, +4 to saves vs. Poison, Tongues, Fast Healing 2, DR 10/evil, Channel Spell, Turn Undead

Immune: Acid, Cold, Electricity, Petrification, Fear, Disease, Enchantment, Mind Effecting Effects, Energy Drain

Edit - forgot to mention - this is obviously a very permissive campaign. All WOTC books are available.

[Ernir]

Take a look at the Bone Knight from Eberron, Five Nations.