Debate with a Christian

[Whateverist]

Well that sure inserts some highly suspect stuff right in the question. What God? Jesus the historical person, or, Jesus of whom so many hysterical claims are made?

If I can demonstrate that the gospels are reliable and that there are four established facts regarding Jesus of Nazareth all of which are best explained by the resurrection hypothesis, ...

Reliable in what sense? As documents originating from around the correct time frame? Coming up with four alleged (and I doubt you'll ever get agreement for more than that) facts sounds like the kind of reading comprehension questions young students are asked: "find evidence in the text that the four 'facts' about the character Jesus are actually supported by the bible". First of all, how do you know this Jesus isn't simply one of many names given to a character in the story that has been told many times, many places? The particular circumstances of this cultural setting need not be relevant.

... then we have good evidence that Jesus in fact, was God incarnate.

Not in a million years. No way, no how. It is the leap to the bible which is most in question. You don't get to use it to 'prove' it.