Not at all. Sasuke got them from Itachi, Naruto got his from his father. Because he is an Uchiha Sasuke had sharingan as his blood limit and because he is an Uzumake Naruto has strong life force, thus is able to be a good tailed beast host.
As you said Naruto worked to gain Kurama's chackra, and later to gain its friendship, Sasuke could not train that much with his MS because it is a manga fact that a MS can fade away.
I already explained. Sasuke trained during his fights. He did not use his complete Susano'o until he fought Danzo and was not able to control amaterasu better than Itachi only after the encounter with Kabuto, or maybe earlier.
Not to talk about how Naruto was helped by his mother and Bee in the process.
I called him like that only for fun, it was a stroke text after all

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Maybe he could have, but you also not take into account in your post that Ae would have been finished off. And Gaars stopped the fight, thus he saved both of them. Don't make it look like he only saved Sasuke.
If you say that he is only speculating why won't you prove us it is not the same. Also you just state it, "I've read all your posts and saw all your scans."
How can Naruto can do such a thing? Any proof to back up that statement?