Ping to 59.
As for rabbinic protocols, I am not aware that Polycarp was Jewish, and I have seen (unsourced) statements he was gentile. I have no reason to believe at this point that said rabbinic protocols were being observed, and so I don’t see why this should infer a Hebrew NT text. If you have good sources backing your view I will be glad to take a look.
Peace,
SR
You are a generation away in Polycarp - I am speaking to what the Apostles themselves had to have upon them to present in the synagogues, which there is good information that they DID, at least in the beginning. By the time of Polycarp, and even prior, within the NT, there is firm evidence that the letters were being copied and traded between the churches corporately... So it is a fair supposition that the Gospels too were established throughout in the same way.
Regardless, I am a strong proponent of the idea that the NT books were fairly well known and distributed early on.