It is already an fact that you need a strong body to become a jinchuurikiNot because of hashi DNA but because of pnj
He doesn't need it he has senju dna boosting his psychical energy which is why he can fight for so long and contain the best in the first place.Izanagi and he is save.
I think this....OT: Yes, he has Senju DNA and Uchiha DNA. Hagoromo could extract the beasts and make the moon on his deathbed with that combination.
He won't be in a fighting condition, but would be alive. He dies making an effort to get back at Madara by creating an opening, blocking a fatale blow, Kamui ing the Shinju, or maybe reviving Naruto if he were to die.