I don't think the salamander should be there to do a whole lot, but it's there to help you get the advantage in combat.
As you already have a lot that can do the same (Skirmishers, chameleons and terradons) I think you should go for something that aids them, or...
the 18 inch bsb and general range will definitely come in handy more in this list, than if you had saurus. You might want to consider salamanders,...
The Orcs where sent back from whence they came
Det ser ud som om der er sneget sig et velkendt sprog ind.
This might give some inspiration: http://www.lustria-online.com/threads/colourful-lizardmen-ideas-pool.16674/#post-136758
I too think the beast would be the best way to go, as Tetto'eko can handle the Heavens.