I don't know any such thing, and I would stick to conservative dating that says, for example, that the Revelation closed the canon and was written last.
The
Gospel of John and
Revelation are thought to have been composed, or at least arrived at their final form, around the same time, c. 90 CE. As early as the 4th century there was a tradition that they had been written by the same person, although that's no longer considered likely.
As for closing out the canon, there would be no canon as such for about two more centuries. It's not as if the books of the NT were written in order and slotted in as they arrived. The only reason the Gospels were placed first was so the story of Jesus (in its various forms) would precede the commentary of the epistles, even though the epistles actually came first and informed the Gospels. It's a thematic ordering, not a chronological one.
And do you think Paul made up the gospel as backfill? And ransom and substitution and so forth? You know as well as I that most people say Paul was written AFTER the gospels to try to create the new Xian religion... I also have no trouble saying we have direct words from Jesus. Was it so difficult to remember what one's God said to you in person a few years after He died and rose? Really? Or do you doubt the historicity of Jesus...?
What you're saying is not what "most people say." It's at best an isolated fringe of Biblical scholarship, which has for quite a long time held the consensus that the Gospels were composed in the last two decades of the 1st century by anonymous authors who had no first-hand knowledge of Jesus (
Luke may be the exception to anonymity, but not to first-hand knowledge, as he even makes explicit in his introduction). Mainstream scholarship does not doubt the historicity of Jesus but at the same time does not accept the Gospels as historical accounts. In fact, I've been quite active in the latest historical Jesus thread, arguing the affirmative.
The Gospels are biographies in the ancient fashion, written decades after the fact with very little factual information to go on, especially about Jesus's early life, which is why they construct it via allusion to the Hebrew Bible and common mythic topoi. That's why they frequently disagree on the details: it's not because they're incompetent or forgetful, but because what they're doing is a great deal more sophisticated and actively creative than just recounting facts. The point is not to tell you what Jesus did, literally speaking, but rather to tell you who Jesus was, constructing appropriate narrative scenes to that end. Insofar as they are faithful representations of the
teachings of Jesus of Nazareth, it's important to understand that the phrasing of those teachings has already been filtered through an existing theological tradition by the time we get them in the Gospels. We're not getting it directly from the Messiah's mouth.
Paul's writings would date anywhere from the 30s through the 50s CE, and he was probably dead before the destruction of Jerusalem, whereas the Gospels all date from after that event. It is highly unlikely that Paul lived to see a single Gospel like the ones we have. What he does have is a very basic narrative that was probably handed down to him from Peter et al.: Jesus gathered disciples and delivered teachings, he instituted the practice of the Eucharist, he was arrested and executed, and he was resurrected. That's pretty much all Paul has. The Gospels are based on that core but add a great deal of stuff to it, including some stuff Paul probably wouldn't have liked very much, such as an increasingly carnal view of resurrection.
As for ransom and substitution, none of that appears in Paul's letters. Those are later rationalizations, with ransom being an early example of atonement theory and penal substitution being a much later one (being formulated about 400 years ago as a Calvinist revision of Anselm's satisfaction theory). I'd argue that Paul's theology and soteriology are free of anything that could properly be called atonement theory, as he does not see the crucifixion itself as the key to salvation. In fact, Paul differs sharply from today's orthodoxy on a number of key points.