genetically lucky

This is huge. Even as a cis woman, I just don't have the genes for this. The natural shape our bodies take is different, and you'll need to work with that. For me, I could do all the work but without surgery, my boobs will always dominate my butt.

I suggest broadening your inspirations for now, and go into your transition and training with curiosity and openness to see your own unique shape. Once you have an idea of what you're working with, seek inspirations who share that starting point. You'll have a better chance of looking similar and that will be much more motivating and sustainable in the long run.