i wouldnt mind playing it, if for nothing else than to see if its unfair, but you forgot one deamon choice, the flesh hounds, but you did restrict fast attack, i think it would be acceptable to take the flesh hounds as fast attack choices. so for the oginization chart i think it wuold be better to change it to this
1-2 HQ
2-8 Troop
0-4 Elite
0-1 Fast Attack
0-1 Heavy Support
that could posably be a better oginization than just added one to all others, becuase i dont think you should have that many Heavy Supports in that kind of army, and it will give you the ablility to take some Flesh Hounds as a slightly faster unit to maybe get ahaed and charge into some annoying units, tell me what ya think.
Travis
PS this is subject to the fact that i dont own the Chaos Codex myself and i dont remember if the Flesh hounds are even a choice for you, but i think they are, if not just take away the 0-1 Fast Attack choice.