Let's make up some ideas to make different Chaos power teams possible (note: chaos power - team, not chaos powerteam

I like the basis that the nurgle team gives, despite the star-player-without-block-big guy.
Just a thought for the other teams:
Khorne:
0-6 Khorne Berzerkers, 110, Frenzy
0-12 beastmen (perhaps marauders (Norse linemen))
RR: 80K
Slaanesh:
0-6 Slaanesh Worshippers, 110, Hypnotic Gaze
0-12 Slaaneshi Beastmen
RR:70K
Tzeentch:
0-6 Tzeench Warriors, 110, ???
0-12 Tzeench Beasmen
RR: 80K
The warrior like positions should have the same stats as normal Warriors.
Just a beginning.
Dunno about big guys, I think the regular ones will do fine.