Using Dark Eldar allies as Eldar Aspect warriors

Untill the release of the 6^th edition Eldar Codex I used dark eldar allies to help fill the gaps in my old army lists. This mainly took the form of some dark eldar warriors and a ravage, as with the old 4^th edition book anti-tank weaponry was vastly expensive. Now I have found myself wanting to reintroduce the dark eldar into my lists but instead of using them as dark eldar, I was contemplating using them as rather unusual aspect warriors instead…