Though it doesn't yet exist, if such a course sounds as helpful to you as it does to me, then you could of course try to work with CFAR and other interested parties to try to develop such a course.

I am interested. Should I contact Julia directly or is there something else I should do in order to get involved?

Also, since you mention Alexander's book, let me make a shameless plug here: Justin Sytsma and I just finished a draft of our own introduction to experimental philosophy, which is under contract with Broadview and should be in print in the next year or so.