It sounds a bit small(but it depends what you want) for your height, however you are size 6 (if also assume 32A) then it’s not that small, however is definetely not big. Personally I go for 285cc and I’m only 5ft and I’m going Moderate+ profile.. size 6 and 32A bra padded.. and I’m going decent size, I don’t want big-big.. so I guess if I had your stats I’d go at least 350-400, depending the profile. Just my opinion though, is best to talk with surgeons.