My friend, you rules!, you´re the boss!, the big cheese, Big Kahuna!, etc, etc, etc.
Since I heard about Ubuntu for N7, I've been looking for a solution like that for I have both distro in my tablet. Now, thank to you, that is possible!.
Thank you for sharing, keep walking!!.
P.S.: Btw, works terrific with my 4.2 rooted stock ROM in my 8GB N7