Fire, I don't understand this "manuscript evidence" you keep pointing too. As far as I understand it, it means the early versions of the bible before it was the "Bible" after all the various documents had been collated and combined.
But I don't understand how having multiple copies of something going back a few years, but all tracing back to documents that were written decades (if not centuries) after the events in questions, but nothing back to the ACTUAL event, can possibly lead to credence to the events being recorded faithfully. Like Mike said, just because something was faithfully copied doesn't mean the original document was right (see: The Onion)
If I'm misunderstanding, apologies, I haven't studied this stuff, I know enough to satisfy my mind, but that's about it.