Kudos to you for trying to push the envelope of 5-bxoing.

A few issues I can see coming up though -

1. No healing / rezzing / debuff removal - this pretty much turns any encounter into a race of dps against damage taken. Any deaths will add to downtime since you have no rezzers / wipe prevention.

2. Sap is only a situational CC - can only be used on humanoids who are out of combat, plus requires positioning and can't be reapplied

3. Prime target for AOE damage. Since you're bunched up all the time, you become a prime target for any Acrane Explosion, Blizzard, Frost Nova, etc. AOE fears will own you unless your very fast on the WoTF / Trinket key

4. Almost all your DPS & stuns can only be done in melee range, plus require positioning - either facing or behind the target. For single target enounters not really a problem, but multi-mob combat or mobs with ranged attack are going to have an advantage.

That being said, it will be interesting to see how go. You've said your not instancing, so it will be some outdoor PVE and PVP I guess?

Cheers,
Stealthy