Chiellini is good but not amazing as some would put it, he can be replaced. The only reason i said i'd do it is because we'd get a WC striker, that means we wouldn't need to exercise our option on taking Quag or Matri. 30m for a defender is too good to turn down, we could easily find another player to replace him that's even ahead of him.
That being said, that rumour came from Nick so by the time i finish this post, i'll come out of narnia & back into reality.