Totally agree with Kjohn on this, just saw this thread and I think you have the potential to be "model" beautiful when everything "pops" into place with a lefort 1 advancement. You're gonna look amazing.
I was immediately concerned about the mandible setback issue because from what I've heard it can actually be quite uncomfortable in that many complain bringing their lower jaw back gives them less space for their tongue to lie in your mouth and it can drive you crazy. With the lefort 1 you'll have way more space in your mouth and it will feel amazing and so will your breathing. Make sure he does an alar cinch and whatever else to prevent the nose from widening too much and if it can be done with a slight rotation or angling so that that you don't get the upper lip "chimp" look. But you don't have a long space between the vermillion of your lip and the base of your nose so you should be okay. Good luck. You're gonna look great. You have awesome features, beautiful wide-set eyes and overally good proportions. You don't have to show much gum show so I don't know if impaction could shorten the face a bit, but bring it up with your surgeon.