Remember though that the Stegadon's Scaly Skin armour save of 4+ (3+ Ancient Stegadon) can be modified by strength. The same goes for the Howdah...
I remember when Chaos meant EVERYTHING Chaos, not 3 or 4 different books. Ahhh, GW and the never ending quest for more money. :D
The list looks ok . However I would drop the Temple Guard unit(if you don't have a Slann, not worth it in my opinion), make your Saurus Cavalry 10...