Guide with some lineups.
But if you want to use Gaara, you can put in your team Baki and Kankuro. Not best, but solid team.

Kankuro - Baki - Main
* - Gaara - *
* * *

Talents - 2nd mystery - shield atack - 1st chase - shark summon.

And dont use GNW Neji until he'll have 3 stars. When he'll get them you can put Kakuzu-GNW Neji and Karin/Shizune as heal. With earth talent it'll be insane.