Okay... I've read this from top to bottom here and I've got to simply state my piece:
Veera, first and foremost, we will always have to deal with the 'physical approximation' aspect of who we are as transsexual women (what the docs are technically shooting for on the OR table). Nothing will ever really make any of us as seamless as GG's unless we get on stuff early enough to head off some of the changes which happen to us (even then, chest cavity, shoulders, hands and feet seem governed by the Y chromosome). After that, it's cutting and grinding and sawing to get close enough to pass without issue for most but no matter what, you'll always see what you are feeling in that mirror, no matter what you look like.
No one has ever had what you are talking about. Many have hypothesized it and a few docs have looked into it but backed away when the implications were considered. The most common thing people do is remove the floating ribs but as already stated again and again, that's neither a good idea, nor what you're talking about.
The surgery that you're looking to do may not even be possible, first of all. There's no room under the ribcage to shrink stuff up very much. Want to find out how little room there is in there? Bruise a rib. The organs are pretty tight and compressing the heart-muscle is a terrible thing to do to your health. You want to take almost 10cm off. I've met people who have abnormally small torsos due to medical issues at birth. The result is a lifespan that's ~25 years shorter. You're 18 now and that seems like not such a bad deal, I'd wager but you'll feel different at 30, I can guarantee it.
Likely even the most adventurous docs in the world won't try this. You'd have to cut every rib and take pieces out of all of em then plate them back together while holding in all the chest stuff then wear a cast over your whole ribcage for a month or so. The results would also look silly if your shoulders are proportional to your ribcage and then you'd have to worry about THAT and I can assure that joints are a NO GO for cosmetic surgery.
Give yourself a few years to deal with this. If you're going SRS, that's a big step and an expensive one to get out of the way first and there's tons of other stuff that you can do. This procedure that you're thinking about will DEFINITELY shorten your life so I'm thinking that even if you find someone who would be willing to work with you on this, you'll be in a better position to deal with that decision a little later in life.
For the record, my chest is 88cm according to a measurement I just did and I can wear tight shirts fine (with many many MANY compliments). My favs are ones that are looong and tight so that they blend hips to chest without highlighting them as happens with male clothing. I just had to just get used to never being 'willowy', which is that impossible Gwyneth Paltrow look that I'd love to pull off but that's not in the cards for me and seems not for you. Acceptance of what is defines the difference between a kid and an adult, babe. You can find the way if you deal with things without the obsession that comes from over-thinking stuff like this. Feeling good about how you look is a direct result of feeling good about who you are and how you present yourself to the world.
Even with the wisdom that comes only from age an experience, this is a hard road to go through. Take time, forgive yourself for being human, find ways to cope.
With Love,
Victoria
