-Manda is enough to pressure them slightly on it's own let alone when aided by fodder snakes and Sasuke himself. Only Kimimaro's strongest attacks and Gentle Fist will deal any significant damage to Manda, but Sasuke can easily evade both of these. Can easily be used to simply evade and tank until Dragon Flame's effects on the atmosphere start to manifest.
-Dragon Flame Jutsu sets up Kirin which then wipes out 2 of them at the very least. Inb4 someone say some shit like "b-b-b-but Sasuke needed Amaterasu". No, the databook states that Dragon Flame is all that's needed. The only thing is that the jutsu will be weaker.
-All attempts to engage Sasuke in CQC are moot due to Nagashi and Manda as a shield.
If some people are left alive after Kirin, Sasuke cleans them up on his own. Sasuke without any version of the Curse Mark and before having access to Oro's abilities was about to wipe Naruto, Sakura, Sai and Yamato from existence with little effort. I don't want to hear anything about the numbers excuse.