So it seems that Epic Beastmen are pretty easy to find on ebay. As a result of several auctions I've impulse-bid on, I now have the start of a Lost and the Damned army for Epic.
The above custom demagogue base forms the fluff for my army: The Cult of the Dark Wanderer. Yes, it's blatantly ripped off from Diablo, I admit that. But it's a great theme.
Now the more pertinent question: why would I want to collect the hardest army for Epic to collect? BECAUSE IT'S THERE.