What evidence is there that anyone wrote up what that guy was saying and doing while he was still breathing? The gospels were written well after he died. And even if so called eye witnesses fed them the information, how do we know they didn't exaggerate it, were mistaken or lied? Just because people were followers of Jesus doesn't necessarily mean they were upright citizens who wouldn't tell a porky if it furthered their own interests.
I was merely pointing out that you cannot assume no such accounts were written down at the time; that's bad history.
Absence of evidence is not evidence of absence.
All we CAN do is work with the available evidence, citing it and adding any slant we care to put on it.
As I pointed out, -in my opinion, which I'm willing to accept isn't evidence, the fragment dating from AD 90 puts the original MSS somewhere between Ad 55-665, assuming this fragment is a copy of a copy, taking into account usage, wear and tear, etc.