Brash, the more I think about it, the more brilliant your little scene is. It solves the problem of why the Jedi never question the origins of the army once they have it, it removes Jar Jar's involvement, and thanks to the Jango Fett subplot, it still makes order 66 plausible.
I hope you don't mind, I'm thinking I'm going to include a version of your scene in my edit. I'm curious though, where did you find the sound clip of yoda saying obi-wan?