Those should be plenty. Ho's practice stem questions are good to go over with a partner.
Remember that it's not just a knowlege test (you've got that covered as you have already passed the written).... This time, it's heavily weighed on presentation, organization, confidence and delivery. Practice oral exams is key my friend. They are the most useful. Plenty of people fail because they trip themselves up... not because they don't know the material.
Pretty sure you're gonna nail it!
