It’s safe to assume you gain one cup size for every 120cc, because you have a 30 band size. You will surely end up a 30E but most likely a 30F/30FF. Appearance wise you will look like a perfect, full DD or E. Of course it depends on your anatomy as well. Some girls ‘eat up’ cc’s while others only have a small implant but size out really big.
Good luck, and you will look amazing. Xx