Hi.
You definitely should think of buying additionl Saurus Warrior units ( I would recommend 4 units) to give you more flexibility and power.
Saurus warrior are the best choice of Lizzardmen army if you weight think on points cost and abilities.
As for your battle report I noticed this sentence:
My next turn saw the Steggadon, remains of the Cold One Cav, and Saurus Warriors supported by the Carnosaur crash through the forest to eliminate the two stands needed to force the break points
I´m not sure if it is exactly meant as written but....Monsters (Stegadon and Terradons) and Cavalry (Cold One Cav.) are never allow to enter, rush throug..etc. forrest.
Congratulations als to your victory as I know that this is not easy when you are outnumbered 2:1 easily when playing vers Skaven

Regards
Claus