Disconnecting the divinity of the Book of Mormon from its origins

I'm starting to reach some partialy formed perspectives on the Book of Mormon. 

So here are my beliefs as I understand them today:

- I believe God inspires men to write scripture in different times and cultures. 

- I believe the affect of applying the principles of scripture is a better test of its validity than praying about it or in studying its historical origin, but I accept the last two still have merit. 

- I don't think Joseph was an intentional fraud or con artist. Nor do I think his successors were. 

- I think it's possible for both Joseph to be a prophet and for Nephi etc to have never existed. 

- I think the Nephites might have existed. I doubt this will ever be proven by historical study. But historical study can show that they could have existed. 

- I think there is viability to some of the evidence for the Book of Mormon's ancient origin, but not all of it. Some of it is just coincidence. 

- I think there is viability to some of the evidence for the Book of Mormon's modern origin, but not all of it. Some of it just coincidence. 

- I believe that whoever was the original author (Nephi/Mormon or Joseph) that ultimately the inspiration for the content came from a divine source. Probably not word for word, but the principles and lessons are divine, not entirely man-made. 

- I do not believe Skousen/others theory that Joseph was simply an AV system for God. I don't believe he was reading off a spiritual TelePrompter. 

How did Joseph produce the Book of Mormon? I believe exactly what we claim. He dictated the book by revelation/inspiration.

My 'hung verdict' on the origin is a different process of study to the question of whether the words in book that exists today are of divine origin or not. 

I intend to continue investigating both. But the conclusion of the first will not make or break the conclusion of the second.