Really cool idea. These look great!
However, if you're open to a suggestion.....
Your logos are backwards. Autobots should be on the red/orange side, and Decepticons should be on the other side. Also, I'd make the Decepticon side more purple than blue. Picks up the colors on the LE's (I'd dig a set of these for my LE Combo)...
Later,
EV