Its in Minato soal not body
The tail beast is a very good supply of chakras. Almost all the jinchuriki have near inexhaustible chakras in the raw form. The difference lies in whether they can control it or not.
Anime & Comics · Alex_Clive
Kakashi eyes is originaly obitos
Even if Kakashi have opened the Mangekyō Sharingan, with only one Mangekyō, he maybe won't be able to use the Susanoo.
Anime & Comics · Iampoorguy
Hashirama and madara born where the kids have to fight in the war and they born in rather peacefull area so this kind of strength at 12 years old is quite normal
Although Sasuke had been taught by Fugaku, his chakra was not enough to support the tree climbing training before he became a Genin, so Sasuke has never train like this before.
Naruto: The Strongest Kakashi
Anime & Comics · Iampoorguy