try to use hinata,gaara, and sakura they are the best ones right now

and the way you would put it is scarlet blaze and sakura next to each other and gaara in front of sakura and hinata in front of scarlet blaze.

Heya,

A good lineup up until your 50's would be Scarlet, Hinata, Sasuke, and Karin/Kabuto. Hinata would be in the front as your tank while Sasuke would be your second DPS after your main and the last would be the support. Seeing as you don't have either Karin or Kabuto I'd suggest using one more DPS or using Sakura till you obtain one of the other. I'd suggest Karin since in the long run she's more powerful, you can obtain by purchasing her fragments in the group shop, farming her from elite instances, or trying your luck out with seal scrolls.

That being said, your talents should be the exact same as you've listed but changing that 10 hit combo to one of the other chases, preferably the one that causes repulse, and changing the fire style enhancement to Genjutsu mirror would benefit you in fights more than the 40% buff since you don't have many fire types in your formation.

Hope this helps :P