I am sure you have seen these pics, but another look at them might help you with your dilemma. Post 23 shows a B30, HAC32, and B35 next to each other in modeling shots.
http://forum.purseblog.com/hermes-reference-library/size-reference-guide-pics-only-91703-2.html
Ok, jackpot! This is so helpful, I have not seen this before. Thank you so much!
This page has the dimensions of everything and such great comparison shots.
Thanks again, I know I will get a ton of use from this page in the future.