@Elissa I see what you mean. Implants would definitely make the difference between been able to be girly and being over-the-top bimbo looking. I can't say that I dislike the sight of massive boobs on a TS. (I have seen many... Ahem... Documentaries about it).

500cc seems a sensible choice. Big enough to spill out of any top, but small enough to still be able to go almost unnoticed under the right clothes.

In the meantime I just realised that this thread dates back to March. Lol. 
Well... How did it go? Did you get them?