You're not going to be able to control every fine detail. With the upper jaw, the margin of error is 1 to 2mm either way.
If you think the surgery can control such a fine level of detail you're mistaken and might want to re-calibrate expectations.
In terms of a theoretical response, yes, in theory you can lower the upper jaw and make the smile more gummy while doing some rotation (though you might have unstable grafts or risk of nonunion in this case, since what I am envisioning has the maxilla floating only with plates to achieve this).
Gunson isn't going to do a mishmash plan of what you think the surgery should be, though. He will do the surgery he thinks is best.
Best to ask several surgeons about this since what you want is very specific and not what you actually need (questionable if you need jaw surgery at all based on the ceph you posted, but if you do, linear looks more appropriate). You haven't provided enough good records to say for sure what you need, if anything at all.