Hi Jennifer!
I'll be honest, I think the scout is one of the best costumes for women, our curves aren't a fit issue unlike with a TK. I'm also short (5'5) plump and have Ds. In the Girl Scouts photo (join our FB group! https://www.facebook.com/groups/GirlScoutTroopers/), I'm the one with the beret and glasses kneeling at the bottom. I've found the only difference for me vs the guys is the chest piece pushes out slightly. Somewhere on this board from 5 yrs ago was me being worried that my boob wasn't fully covered by the armor, but it's a non issue once you have the vest and suit on!
For armor, I have the MC armor and I love it. Fit is fantastic. SC is also pretty good for us shorter scouts!