Naruto solos. We've already seen that only one clone of Naruto was able to take care of Kimimaro and Chiyo together. So he will do the same with Kimimaro and Utakata. During that time, he kills Sasuke. Gaara and Neji don't even need to interfer here
kimimaro beat aside the clone and continued owning the division until edo ended,the clone attacked them with a rasenshuriken,the next time we see them,they are fighting the division with no word of the clone,so they beat up the clone and continued their business,so 1 clone isnt enough.Naruto solos. We've already seen that only one clone of Naruto was able to take care of Kimimaro and Chiyo together. So he will do the same with Kimimaro and Utakata. During that time, he kills Sasuke. Gaara and Neji don't even need to interfer here