Abdominal Scar revision or apronectomy & BA or BA+ lift

I am 40 years old considering a mummy makeover. Ideally I would like to achieve fuller more symmetrical, perkier breasts. My question is if I had a lift alone would my breasts then look fuller albeit smaller or Is BA the only way of achieving fullness. If I were to have a BA to achieve fullness would I also require a simultaneous lift. I am not fixated on having larger breasts necessarily. In relation to my abdomen, ideally I would like to achieve symmetry. The right side is higher due to puckering and tethering of old an appendix scar.