That definitely helps clarify some things. I got all of my information from your student welcome packets and website.
In regards to course count, I was only including those where content might vary which is why I listed 2. IMO, multiple instances of the same course is still a single course.
Your not required to carry anything more than you need to be safe and comfortable and to be able to support the expedition. On my scale, leadership weighs exactly 0.0 oz.
One look at the pack list for a standard NOLS course says otherwise. Ex. "If you bring an internal frame pack, it will be examined by your instructors to determine its suitability for your course and route. It must have a volume
of 5500 to 6100 cubic inches."