Defensive Avenger

[Vash]

I'm going to start a defense oriented avenger-din in non-ladder. Current plan:

20 Vengeance
20 Holy Shield
20 Defiance
Some Salvation
Some to possibly max Conviction

The aura that I use will be situational. I'll usually keep Conviction on unless I'm getting my ass handed to me.

Planned equipment:
Tal's Mask for helm maybe?
Baranar's Star
Stone runeword Archon Plate
Ravenfrost
Either I use the Stormshield that I have or I trade it for a Herald of Zakarum
String of Ears for belt maybe?
I'm not sure what gloves, boots, amulet, and second ring to put on him

Initial concerns/questions:
1) Stormshield or Herald?
2) Suggestions for equipment?
3) I'm worried about how well he can tank since Vengeance is not a crowd control skill.
4) I'm worried about keeping his mana up. Mana leech wouldn't do a whole lot of good since it's cut to 1/3 in Hell and Vengeance doesn't add to physical damage. Vulpine wouldn't work too well since the whole point of this build is to NOT get hit :P . Perhaps I should use Zeal occasionally to leech back mana?
5) I'm also worried about life leech. Again since Vengeance does not add to physical damage, life leech won't be very effective. Would Zeal also be the solution to this concern?

Please give me your feedback.