This may be a little late, but I just looked at the mock-up with the gray image in the back. I'm not sure what "travel' uses you envision, but I spend a fair amount of time playing in chairs of various sorts and one area that can feel cramped is the distance behind the bridge. It's an obvious length-saver, but if you're playing in a chair with an arm on it and the bridge is crammed way down into the crack, your right hand is quite hampered. You might want to look at it, and if you can spare an inch or two at least think about something like a Jaguar or Jazzmaster shape where the lower bout is longer on the bottom side, or even some heavy metal "X" shape extension.