To answer some questions(not sure if answered already, dont wanna read 12 pages),
Gaara is now good because of Naruto making him realize that fighting for others is why you become strong. He started to understand friendship/love. I personally think the Tayuya and Sakon have no chance against Temari/Kankuro, first because they've used up most of their chakra from activating level 2 seals. Sakon isn't in level 2 anymore, and hes no longer combined with Ukon, which means Kankuro can most likely beat him. Termari is fighting a weakened Tayuya too which gives him a good chance. Gaara has Shakuku inside him and him incredible ultimate defense of sand, and he can do desert coffin, I doubt Kimimaro can match the power of a demon. So im pretty sure that the sand trio will beat each of the Sound considering they're all weakened.