I know what you mean about teaching. I am not at all comfortable to teach a class. I have met a couple of really fabulous women this past year. I could try to contact them and ask if they would be interested in speaking. I also know a great male captain that is a really good teacher toward women as well.
I think you have a great idea and you’re already steering it in the right direction. About the heeling…….Explain to them that If they enjoy what they hear and learn through your class, enough to be interested in learning to sail, that all of those things will be thoroughly covered in a sailing class. Your job would be to pass along basic terminology and get them acquainted and comfortable with a sail boat.
Hope this helps,