Hi,
Apparently GW is reinventing the DIY concept with Epic Armageddon by doing cool rules but not putting out any models. So I've been trying to figure out how to do some demons that weren't completely uncharming.
I've come to the conclusion that what I think works best is single warmaster demons.
Here's a picture of how it works:
As you can see they're big... but not nescesarily insanely big.
I believe something that could smash a landraider singlehandedly (at least in 40k they could) should be of that size. And Forgeworld mega demons seem to concur.
A single pack of warmaster demons will give you 30 epic stands if you do it this way -- now that's economy!
And oh well - of course I'll buy the new shiney old ones if they ever put them back in production
