300cc breast implants big enough for a small frame to be a C/D cup?

I am 5'6.5, 115 ibs, and have a very thin frame, I am currently a small 34b, my dr. Recommended 300ccs silicone high profile implants over the muscle, I want to be a full c at least and would be extatic with a small d, will 300ccs get me anywhere close to where I want to be? Will surgery be worth it? And what is the difference between high profile and moderate? Thanks:)