Will you be having chemo? I was just wondering of mismatched you might be able to have a small implant in to balance out. Because you will likely need radiotherapy they might suggest popping a tissue expander in prior that so it can stretched befire hand as radiotherapy can shrink the skin and muscle a little and make the stretch a little difficult. It can be done post radiotherapy though if not requiring too big a implant to balance. My niece had her reconstruction after radiotherapy a couple of years later and very successful. She was always small busted but she looks rebalanced now.