This is a great outline, and I wish I had known it existed before we started our back-and-forth comments. We are MUCH closer in our thinking than I would have guessed.
Final thoughts: As I entered college thirty-five years ago, I had a conversation with an older astrophysicist who worked at NASA and had converted to Christianity. I asked him why he did. His answer had little to do with the Bible or Christianity. For him, it boiled down to a math equation:
How does Absolute Nothing x No Intelligence x Time = Everything in Existence]? Ironically, that is where I stand now, having dismantled the Christian tradition I was born into.
The common problem Atheism and Theism share is where the original material of cosmology came from and what that source infers.