lol naruto solos. and if naruto gives minato kurama chakra it's even worse. warping tbb to ftg kunai so they can't block it. lol.
Lol true a Naruto + Minato combo would be extremely hax. Imagine Naruto powering Minato up increasing his reflexes to an even higher level as well as giving him a three times stronger rasengan. The space time barrier could help defend against most ninjutsu from the Uchiha bros not that is required in this battle.
Naruto's TBB will demolish the susanoos of the Uchiha bros so he can solo since his clones can keep Itachi and Sasuke busy while the real Naruto preps the TBB.
Both Naruto and Minato can dodge amaterasu so it isn't much of a factor in the fight.
Naruto and Minato win low-mid difficulty.