I wonder if I want to be woman with 88, and the thing is... No, I can't. I'd rather be dead, I think.
I have seen many women who I think have a larger thorax than 88cm. Many Nordic, Maori and Pacific Island women are well-built. I suspect you're not happy with just 'being a woman' but rather you want to be a 'hot woman'... I have the same issues too, and I totally understand. However, what about all of those larger women? That doesn't make them any less female... most of us who have transitioned in our twenties or later probably have to accept that we're never going to be waif-like.
If you can't get over this, there are a number of things I think you can do.
1. It's unlikely that you'll be able to reduce your ribcage, so I think finding other ways to compensate would help. In particular, I believe getting fat transfers or PMMA injections (I know, some will say there are dangers to this, and I don't want to get into a whole discussion about PMMA with others about the risks, but I am tossing it out as an option, that's all. I am considering this, and have done a lot of research. Don't take this as an endorsement of pmma - do your own research) to your hips and buttocks would improve your hip to shoulder / hip to thorax ratio to more feminine proportions. Also, get breast implants to increase breast size.
2. If you really are desperate to have your ribs broken - and even I would not consider this - you might enquire with some doctors in China. I believe they do all kinds of crazy surgical procedures in Mainland China, although I don't have any details.
3. Wear dresses which are tighter at the top, with a cincher at the underbust , and which have a flare at the bottom.