There is nothing inherently or generally contradictory about L1 advancement supporting soft tissue and having bunched up soft tissue around the mouth. NOT in the sense that the area will become puffier. IF the problem is bunched up soft tissue, than the L1 advancement will give more 'face space' for better distribution of it. IF the problem is a peri-oral fat mound, which some people have, the LI advancement won't make it 'go away' but won't make it puffier either. Having BOTH isn't a counter-indication (against getting) a L1 IF that's needed in process of bimax surgery giving better balance to jaws.
However, there will be some LIMITATIONS of how much of a L1 someone can have. In your case, the long philtral area and the large nose to lip angle would be the limiting factors. Not bunched up soft tissue or a peri-oral fat mound. That large angle could open more with maxillary advancement because the more the advancement the the more the nose to lip angle gets exaggerated. Although 'bucking out' the front teeth more helps close the angle a little, the orientation at the base of the nose is going diagonally upward and that's what would be going forward more with maxilla advancement. So, the long lip and large nose to lip angle is going to limit the amount of maxillary advancement you can have, lest that problem area get more exaggerated.
There also looks to be another limitation as to the NET CCW rotation from CCW downgrafting. Your ceph reveals, MINIMAL tooth show. So, the downgraft might also involve downgrafting the FRONT maxilla (a CCW POSTERIOR DG is just the back part) and that would decrease the NET CCW rotation. A higher NET CCW rotation allows for more of a BSSO advancement (as does more maxillary advancement). So, a higher net CCW rotation could require a surgery to REDUCE excess length of the long philtral area. In fact, some surgeons (ones who do the large down grafting) might want that in order to MINIMIZE maxilla advancement and also maximize the net CCW-r from a down graft.
So, this looks like somewhat of a complex case, that YA, would resolve to a surgeon who does the DOWNGRAFTING and CCW. But you'd want one who's associated with plastic surgeons to do the lip lip lift. I see you getting SOME improvement with the CCW bimax surgery and of course, chin advancement. But I don't see you getting a short conCAVE upper lip out of it or much of a dramatic 'Wow' factor out of it.
Enclosed is my basic study from which I formed my opinions.