Hello Roger, I have already written the definitive work on the timeline and rise of Roman Catholic Christianity (as opposed to Judaic Christianity). A link to this not so long read with corresponding footnotes is available for anyone to download and read for free.
I don't muddy the waters with conjecture and doubt or "possibilities", I'm a little more concrete than that.
If someone wants to refute my work, fact, by fact, I'm fully open to the effort. However, my sources are rock solid scholars with deep pedigrees in Judeo-Christian history and Biblical paleography.
Feel free to read my book I'd love to see your review of it on Amazon. :)