3) that Jesus had been resurrected from the dead, and thereafter was seen by over five hundred eyewitnesses (most of whom were alive when Paul wrote) (1Cor 15:4,5) Name them. Gather their testimony. I will wait. Paul DID name many of them:
For what I received I passed on to you as of first importance: that Christ died for our sins according to the Scriptures, that he was buried, that he was raised on the third day according to the Scriptures, and that he appeared to Cephas and then to the Twelve. After that, he appeared to more than five hundred of the brothers and sisters at the same time, most of whom are still living, though some have fallen asleep. Then he appeared to James, then to all the apostles, and last of all he appeared to me also, as to one abnormally born. (I Cor. 15:2-7)
We have the written testimony from Peter, James, Matthew, Mark, John and Paul, in addition to some of the earliest church fathers such as Clement of Rome, Papias, Polycarp and Irenaeus. There may have been written testimony from some of those others who were eyewitnesses to the resurrected Christ which didn't survive the two thousand years (time is kinda tough on papyrus or animal skins - the most common material used for writings). As Kevmo has stated, the New Testament writings were completed while thousands of eyewitnesses were still alive. The claims made within those books would have been rejected had they said things contrary to what people witnessed with their own eyes. That we don't have a plethora of such disputations seems to me to prove the disciples were speaking the truth.
Do you have any eyewitnesses handy who can give you their testimony that the Apostles all lied???
And we have from the testimony of Matthew, Mark, Peter, John various things that they could not have witnessed, that are combined with things that are impossible.
Normally when a witness perjures, their testimony on all else is thrown out.