As I was fiddling w/ deluxe Lockdown, I realized the shoulder kibble (tail light) is right next to the feet. So it's fairly easy to make him taller just with a simple attachment piece. Another small heel piece flips out and securely clips in place. The stance is stable. The only downside is the feet look like belonging to clown ducks. I tried with making feet flip around 180 deg. But that makes the lower leg facing wrong way. So this seem to be the best compromise so far. I could put the pieces up on Shapeways. But you'll need screws for glasses, and a very small screw driver to assemble it.
Props for trying, but I think that any modification to this mold is just polishing a turd. You can try all you want, but at the end of the day, it is still a turd. The idea, however, is pretty nice. It's just a shame that Hasbro did not really give us much to work with when it comes to this mold.