Warhammer+Minecraft

My incomplete Lustrian Temple

So I've been playing a ton of Minecraft lately.  I would love to try the multiplayer out, to build something huge with a dedicated group.  What I'd like to do is build cool Warhammer Fantasy/40k type things, and perhaps even hold pvp battles in them.

To that end I've been experimenting with running my own server, though I want to wait until 1.8 comes out so I can get the new biomes and such.

If I did start a multiplayer server with the purpose of working together to build something Warhammer related, would there be enough of an interest to do it?

I would intend to keep the server free to join but with donations optional (running a server isn't free).