Four prompts with your choice of one! And if these have already been answered in the story or are Not Applicable, s-sorry, its been a while since I read CW orz

--Sakura in/just post her nurse-training (She and Ino's friendship then?)
--How Sakura and Ino became friends. Basically like canon or different?
--Why did Naruto get the grafting, and how old was he?
--"Echoes of darkness"