As requested, here is the refined save smackdown (originally the '+200 save' smackdown, but upgraded since becoming aware of repeating Empowerment.)
Here it is:
Human Psi(Tel)1/Clr8/Contemplative9/Pal1/Sor1
*reincarnated* to a Halfling (this is crucial, see later).
Clerical Domains are irrelevant, but Contemplative prestige domains have to be Mysticism and Divination (e.g. Pelor should do the trick).
Base:
From Paladin: +2/+0/+0
From Sorceror: +2/+0/+2 (includes Rat familiar)
From Psion: +0/+0/+2
From Cleric: +6/+2/+6
From Contemplative: +3/+3/+6
Totals (so far): +13/+5/+16
Not too bad so far.
Reflex is looking a bit poorly, so cast Divine Agility to grant yourself the Reflex save of a 20th level rogue: +13/+12/+16
Now, we cast Greater Aspect of the Deity, and then apply the ability mods:
Dex: 18base +5wish +15Quadruple Empowered Cat's Grace (including from Metamagic Rod) +2halfling racial +2halfcelestial racial = 42 (+16)
Con: 18base +5wish +15Quadruple Empowered Endurance +4halfcelestial racial = 42 (+16)
Wis: 18base +5wish +15Quadruple Empowered Owl's Wisdom +4halfcelestial racial +3age = 45 (+17)
Note that due to Timeless Body (Contemplative 9th level ability) there is no penalty to physical statistics from aging.
Add them on: +29/+28/+33
Now we begin the real smackdown:
Cha: 18base +5wish +5advancement +15Quadruple Empowered Eagle's Splendour +4halfcelestial racial +3age = 50 (+20)
Using Mysticism and the Paladin bonus, this gives +21 to saves (not +30, see DotF pg.80)
We now have: +50/+49/+54
Beginning to shape up, but we're still a long way off.
So we turn our attention to feats: (8 total, 7+1 human (hence could not start halfling))
Iron Will +0/+0/+2
Lightning Reflexes +0/+2/+0
Great Fortitude +2/+0/+0
Strong Soul +1/+0/+1
Divine Cleansing +2/+0/+0 (when active) (sacred bonus)
Snake-Blooded +0/+1/+0
Bullheaded +0/+0/+1
Improved Psicrystal +2/+0/+2 (taking Resolve, includes bonus for Hero psicrystal)
NB NO Luck of Heroes as luck bonus will not stack with spells.
The tally stands at +57/+52/+60
Magical Items are next:
Vest of Resistance +5/+5/+5 (resistance)
Armour of Command +2/+2/+2 (gives +4 to Cha, so +2 to all saves)
2 Arms of Nyr +0/+2/+0 (+4 Dex: hey, they are unnamed bonuses, who says you can't have two?)
Potion of Heroism +2/+2/+2 (competence bonus)
That's it. Anything else will be superseded by spells:
That takes us to +66/+63/+69
Finally, here comes the spell run-down.
Recitation +3/+3/+3 (luck)
Righteous Wrath +2/+2/+2 (morale)
Foresight +0/+2/+0 (insight) (from Divination prestige domain)
Tenser's Transformation +3/+0/+0 (competence, normally +5 but only +3 over Potion of Heroism)
Rage +2/+0/+0 (+4 Con)
Emotion: Rage +1/+0/+0 (+2 Con, and believe it or not it does stack with Rage)
Greater Aspect of the Deity (already covered)
Use Miracle to emulate spells which you cannot cast (TT, Rage, Emotion). Technically, if TT'd you cannot cast spell, and same with Rage, so TT yourself and ask a friend to Rage you.
Total: +77/+70/+74
Then, stand behind 9/10 cover. This gives a +4 cover bonus to Reflex saves: it's a bit of a cheat, but smackdowns assume optimal conditions. If you're particularly worried, just assume we create Walls of Stone around ourselves.
This takes us to +77/+74/+74.
Add the halfling racial bonuses and you get the grand total of +78/+75/+75. Add them together and you get +228.
Phew!
And believe it or not, this actually makes quite an effective character even if not going for saves: he can use arcane, psionic and divine items, cast 9th level divine spells and has full armour and martial weapon proficiencies, as well as have a few 1st arcane and psionic abilities as a little boost. Neither are there multiclass penalties (you started as a human, remember?). Finally, it is 'self-contained': there is no reliance on scrolls: 36 Wis gives you 3 9th level spells (Miracles) and 1 domain spell (Greater Aspect of the Deity). NB You only have effective 36 Wis for purposes of memorising spells, read SRD for Owl's Wisdom.
Now what were the DCs for Azathoth's spells again? 60ish? Not a problem
Oh, and have a Heal readied on the condition: if anyone casts Harm on me
