I have played all classes to vet rank but usually stick with magicka and don’t PvP much. This is my 2nd NB. Mostly for non-vet PvP. It seems more balanced right now. I plan on PvP’ing more, and heard/read that stamina is way better for PvP as the game is right now. I am wondering what you guys think is best for my play style. In most games I like the sneaky assassin with selective targeting who goes for the most dangerous threat and takes them out before they can do much damage and/or healing (i.e. take out the siege engineers or healers from the back). My idea is to buff up my damage as much as possible before sneak attacking. I am only level 27 now but am trying to think ahead. Any and all critique is welcomed.

BAR 1, Two-hand Sword
Wrecking Blow – 20% more damage on next attack
Ambush – Gap closer and 20% more damage on next attack
Shadowy disguise – escape mechanic and to be more sneaky
Rally – 20% more damage for 30 seconds and my only heal aside from pots
Mass hysteria – either to single out a person or as an “Oh Yit!” button
Ult: Soul Harvest – Moar Damage

BAR 2, Bow
Venom Arrow – Stop healers from casting
Snipe – Big damage
Crippling Grasp – Kiting maneuvers
Relentless focus – 8% damage buff and 10% stam regen
Piercing Mark – less armor equals more damage
Ult: Flawless Downbreaker – 5% more damage

Mundus: The Warrior – Moar Damage
And, of course, any and all passives I can get my hand on. Passives are pretty much self-explanatory.

Stamina regen from WW (15%), Refreshing Shadows (30%), and Bosmer’s Y’ffre’s Endurance (21%). That’s 66% in combat stamina regen bonus. Not counting medium armor passives.

So the idea is buff with Relentless Focus (8%), Rally (20%), have Dawnbreaker's buff (5%), Bosmer Stealthy trait (10%), Master Assassin (10%), and if crit Hemorrhage (10%). That’s 53% more damage from a sneak attack, 63% more if it crits. Also, 28% carries over to regular fighting with a 2-hander and 33% with a bow. Not counting Champ points.

TL/DR
My ultimate questions are;
1) Would Camouflaged Hunter be better than Crippling Grasp? Grasp is for more kiting, but Hunter can be applied while in stealth and there are a lot of vamps in PvP, so I have heard. It’s only a small percentage though. So, I was thinking Grasp would be more useful overall.
2) Armor split: 7 Medium, 5/2 Medium/Light, or 5/1/1. With 5/2 I still get good benefit from the passives but allow a little more magicka for things like Hysteria, Shadowy disguise, Mark, and Relentless Focus. 5/1/1 offers the Undaunted passive for 6% more stats (prob not 5/1/1 for PvP, Huh?)
3) How useful is Shadow Image? Is it more like a fun gimmicky ability (and looks really fun) or does it serve a useful purpose. What ability would you discard to use it?
4) How useful is Surprise Attack? It’s quicker than Wrecking Blow but doesn’t offer the damage or 20% increase to next attack or hit as hard. What ability would you discard to use it?
5) Is going all stam the best or would I need some magicka for more utility spells? Do I even need health?
6) Are there any other “in stealth” damage buff I have missed? Buffs that can be applied in stealth and not break it.

Thanks in advance for the critisiscm.