Wow, the force is definitely strong with that collection!
Very creative.
At least two and possibly three of us from our little group in the North West of England are going to be getting back into Epic Armageddon in 2015. I've already got a Dark Angels army which I'm in the process of basing/re-basing onto round bases this Christmas (from the ones that Troublemaker games does).
I've bought some Dark Eldar (Onslaught Miniatures) and will just use them as Eldar using the 'counts as' rule. I think I'm going to pay to have these painted by someone else. (Any takers if you can do a very high level?)

I am also slowly building up an IG collection from E-Bay. I've been rooting on the web and as one of my friends already has the IG, I've decided to do mine as 'Blood Pact' Traitor Guard. I will use the IG list and just use the 'counts as' rule. I'm going to paint these up myself over 2015 though. I've bought some Forgeworld Brass chaos icons which I will stick to some of the vehicles and I'm going to raid a friends 40K chaos bitz box to see if there are any other bits I can use to 'chaos-ify' the vehicles.
The aim is that by this time next year we will have Eldar, Orcs, Tau and IG (other players) and I will have Marines, Traitor Guard and Dark Eldar.
Dave