Thank you Cassius for taking the time to read what I have submitted and respond with a lot of detail. You've definitely given me some things to think about.
To answer your first question, obviously the natural and necessary desires must be satisfied. To neglect them would result in pain. However, you have made me rethink my position on whether the unnecessary desires be changed from "must" to something more akin to "should" depending on each individuals circumstance. What may apply to me, doesn't necessarily apply to everyone. Obviously, this is subjective to the individual and I thank you for pointing this out to me.
When I say I'm still thinking about things, they mostly lie in epistemology. I don't think I have a good grasp on the application of the Canon when it comes to testing the truth of a statement. I also have a weak understanding of the anticipations and what this faculty is. It would be very helpful to me to form an exercise where the application of the Canon is used to test the truth of a claim. Any help here would be greatly appreciated.