Just now got it working.
And in comparison to the old model:
Scale looks good, and that should be plenty of space for animation. It's not going to hurt to go outside of it a little bit, so long as it's not a foot or two outside like the old model was, heh. I'm not going to mess with the hitbox any right now. But really, moving the legs around a bit, maybe some sway to the body -- what would make it go outside of the hitbox?