just for some clarifications
Six paths power doesn't come from the Ten Tails. a lot of you are misunderstanding things.
1. the Ten Tails is an entity that is the combination of Kaguya and the shinju in one. the shinju isn't an actual god or sentient being its just a giant tree that feeds off the natural energy of a planet(per the flash backs with hagoromo, indra and asura)
2. the fruit that kaguya ate gave her the ability to mold her physical and spiritual energy's together creating chakra. but the otsutsuki clan already had access to chakra, they consume pills that essentially do what the fruit of the shinju did for kaguya but they have to continue consuming it. the chakra kaguya had was always hers
3. when hagoromo and hamura were born they inherited there mothers chakra, said chakra was never the shinju's it was always kaguya's. consuming the fruit only gave her a Permanent level of chakra. hagoromo and hamura were born with there chakra
4. Hagoromo gained access to the Mangekyou sharingan and Rinnegan after fighting hamura, the six paths power was naturally his
5. when hagoromo gave naruto and sasuke power before there revival he gave them HIS CHAKRA he was naturally born with it. he gave them both half of his six paths power. this resulted in Sasuke getting a single Rinnegan, when naruto entered sage mode the combination of six paths and sage mode created the six paths senjutsu. the truth seeking balls were given to naruto because he gained the six paths senjutsu. it had nothing to do with the Tailed beasts in him
the proof is in one of the newest episodes where it was shown that Asura was given six paths chakra from hagoromo without any of the tailed beasts in him. he also had a chakra avatar that resembled kurama.
also when naruto enters tailed beast cloak. people do not realize this but thats not kurama's chakra. its naruto's Kurama's chakra is Red, Karin described naruto's actual chakra s bright orange and warm(visibly to everyone else it would look blue but each persons chakra has a distinct color to sensor's)
out of all the kyuubi jinchuriki's only two had that same type of cloak and that was minato and naruto.
what happens when Naruto enters this mode is that he absorbs kurama's chakra then he transmogrifies it into his own chakra IE it becomes naruto's chakra
the databook says there are a number of ways to gain access to the six paths chakra
1. you can become a jinchuriki of the ten tails this is only because hagoromo use to be the juubi jin as the six paths is the chakra he inherited from his mother but in an evolved state, he had this chakra before ever becoming a juubi jin
2. you can gain access to hagoromo's chakra and also have senjutsu, using them together creates the six paths senjutsu
Naruto and sasuke were fundamentally altered. the moment hagoromo powered them up they had those power ups forever.
as for sasuke's Rinnegan it has nothing to do with kabuto healing him. it never once said he used hashirama's cells it said he used the knowledge he gained from studying hashirama's cells to heal him. on top of that hashirama was no longer a transmigrant so his cells no longer contained the ability to grant Asura's powers. hagoromo himself stated that madara and hashirama USE TO BE transmigrants.