Hey needadvancement.
Im in the same scenario as you. The problem, in my eyes, is that if we don't fix the protrusion problem before surgery, we'll have chimp lips after. Extractions would make the protrusion look more "normal" but I'm not sure if this is the best option. Pulling teeth collapses the face, makes the airway more narrow, plus who knows what else it does. I've been thinking and I feel like some cases of bimax protrusion could be fixed with expansion of the jaws. In my case my upper and lower jaws are like narrow U/V's and it kind of looks like yours is as well. I photoshopped a pic of your dental arches, sides expanded with the fronts brought back and it looks normal to me. I'm not an ortho or dentist but It just makes sense to me.
If your only choice is extraction or that bone thing, then Id go for the second one. But who's to say that the bone just wont reabsorb and it'll look the same after 5 years. As far as I know Bimax protrusion is causes by tongue thrusting, therefore the pressure of the tongue has pushed the teeth forward causing this.
Heres the pic:
http://i.imgur.com/804dCjK.jpgIt might make the lips looks more normal. I doubt the maxilla will have any change since the molars wont be moving just the front teeth.
Let me know what you guys think! Also whats at bone procedure called?