Well like I said I was giving advise assuming u were adding new models. 16 bloodletters is ok, take 18 daemonettes if ur going for god numbers, 14 plaguebearers are ok, and 18 horrors is fine too.
I don't see the point of using ur khorne herald on a hugger. He would only then benefit bloodcrushers which are really bad in this new codex.
Best of luck with the list and if u can take some of the advise I've given into the mix all the better but hope I've helped!
War does not determine who is right, only who is left.
Throne of Skulls best Daemon Player 3 times now!