Hi, I'm pretty close to what you're describing (NB/masc with femme accents/bigender) and I too have gigantic boobs which I plan to get reduced sometime in the future after weight loss, with the possibility of top surgery a while later.
I really wanna start binding for now, but I'm an even bigger cup than you and I've heard it can be extremely dangerous to do so fulltime at my size. As for scarring, I've heard many FTMs get tattoos over the scarring if that's their thing (you have to wait about a year for it to heal to that extent though), and there are probably some cosmetic procedures that will help reduce the appearance.
Good luck!