This build is really quite basic, the normal Zealot build, but instead of maxing Blessed Aim as some guides might advise, you max Defiance (for the Holy Shield synergy). The equipment however is extremely expensive, even on non-ladder. For most people this would be completely impossible (except on open :P), costing hundreds upon hundreds of non-ladder high runes/32020's. But here's the ideal equip (I don't have this unfortunately):
Perfect Glitched Eth 15% superior Stone Sacred Armour (AFAIK does not exist).
60% ed/120+ AR Perfect Eth 15% superior Exlie Vortex Shield (REALLY expensive (this is from a person with lots of HotO's)).
Those two are the main items.
Also extremely expensive are:
x10 Combat Grand Charms (w/ hp/hit recovery)
Perfect Annihilus
.
The other charms are made up of x9 32020's.
For boots I use eth sandstorm treks, sometimes switching to Soul Shanks etc.
Steelrend's for gloves (there's probably a better option somewhere (e.g. dual-leech rares))
15% Verdungo's for belt.
Perfect BerBer Crown of Ages. That will give max DR.
BotD Zerker.
Angelics.
On switch CtA/Lidless.
Prebuff:
HoZ & +3 Combat & Holy Shield scepter.
Demonlimb
Of course this equip can be improved, but this is rather good too
.