I do agree with Cypher, I personally would rather have sallies than the krox-n-skinks unit, as I have yet to be convinced that those little T2 boys can pull off combat, even with big cousins along.
And the 'screw you and your 6" ability is money in the bank, sooo irritating

Couple more ideas to free up points:
- swap Focus of Mystery on the slann for Tepok, which I see people do and I kind of agree, 5 spells for 15 points beats 6 for 50 (-35 pts)
- swap krox-n-skinks for 2 sallies (-40 pts)
- add '6 denial' thing to slann (+50 pts)
And now you have 25 points to do something neat with. Magic weapon for
TG champ? Banehead on the slann? Magic standard for froggy? More skirmish skinks? Maybe more pokey skinks for the sallies?
- Salvage