Im 5ft 4. 8 stone 6. size 8-10 and I was a 32A. I had 325cc high profile unders and I am now wearing a 32DD sports bra. Take a look at my pics. I don’t think its so much about saying you want to be a certain cup size as sometimes someone may be a DD but may only look a C if you get what I mean?
going by your stats they wont look huge at all not in the way your thinking! your starting off a A cup so it will bring you to a d/dd you will measure bigger of course all implants do but you wont look the size you measure! in the end you will be happy you chose 470 xx