Howzit Razzac?
Have you considered how you're going to keep the Wraithguard, Wraithlord, and Spirit Seer together with the rest of your force? The dogs and Venoms will all most likely be moving 12", but your eldar will be struggling. Is this part of an overall plan? (Objective Camping?)
Maybe have the Kabalites in the raider kitted out for long range support, so the Wraithguard and Seer can jack their ride and get close enough to let loose with some D.
Also, just my personal preferance- CC Archons(even cheap-ish ones) belong with a Grotesque unit.
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"Whereas the duty of the Imperial Commander is either to seize or defend territory, the Dark Eldar make war only to steal. If, as a by-product of this, the are able to indulge their vile passion for murder, torture and other decadent acts, then they will joyfully do so, but this is not their primary goal"