I managed to fix that weird side effect the grab glitch fix was causing.
http://www.mediafire.com/?hyttjygzgzyHowever, his left foot (L_toe) was severed because of it and I couldn't do it any other way.
It was either fixing the glitch 100% or saving his left foot, and I chose the first.
The model importer is needed to save his foot AND fixing the glitch (as well as replacing the boneset with that of a Brawl character).
EDIT: tried to fix his left foot a bit, not very well but at least a bit nicer that before:
http://www.mediafire.com/?0wyhjmmml1xAlso, I found out that I can actually use animations from Dragon Quest Swords: The Masked Queen and the Tower of Mirrors on Naruto (though with heavy translation fixes).
I already have a Up-Taunt for him.

A Walk Middle (don't mind his left foot).

A Walk Fast (really don't mind his left foot).

And a ClimbWait.

DL:
http://www.mediafire.com/?nqyo2zmi0waYou like?