Formal Attire for the Genderfluid Woman?

Hey everyone!

School's about to get back in session, and I've registered for a speech course that, sadly, requires its students to wear professional attire during speeches. It's spring semester, which means warm weather in California; however, I'm more concerned about the style.

I'm not out to my friends, coworkers, or professors on campus, so I'm worried on how to exactly dress for these upcoming speeches. With a masculine body and appearance, I can wear a traditional jacket and pair of slacks, but I would feel too masculine and awkward in a suit. The jacket alone is a big box with even bigger shoulders, sometimes. I would not enjoy having to wear such outfit around. However, if I dressed too feminine, I would possibly put my audiences, fellow classmates, in an awkward position. I love the idea that women can wear skirts, blouses, and other outfits for their speeches. Sadly, If I were to show up in a skirt or flowing business dress, I could be mocked or even beaten.

I've brought it up with a friend, and ze's helped me look for some heeled shoes, outfit ideas using scarves and such, but I'm thinking of bringing it up to the professor, who happens to be female. Hopefully, she'll be open and encouraging with my feelings.

I just won't feel comfortable wearing a suit, yet I know I have to fit in somewhere for the assigned presentations.

Any advice, links, or assistance would be fabulous!

 

I have looked at vests! I've also looked at sweaters. What would I wear under a vest, though? Just a dress shirt?