Thank you for your interest in my post, and even in my own fate. However, I think that Paul's "Messiah according to the Scriptures" idea is a rather poor choice to prove your point.
Why? Let me explain. I'm sure you've read carefully my arguments before writing your comment. So you know that one of my main reason for losing my faith was the use of "bad" (Deutsch), ad hoc explanations in the theologies based on Holy Scriptures. And here, in the Christ theology of Paul, we have a perfect example of this very procedure.
Here is Paul's problem: there was no " Christ died for our sins (...) he was buried, that he was raised on the third day" prophecy in the Scriptures available at Paul's time. So what the Christian theology since Paul's time is doing? Theologians look for ANY prophecy in the Scriptures, concerning ANY figure (Son of Man, Suffering Servant etc.) - and they use those prophecies as "Messiah prophecies".
It works also like the lottery: if you have tens and hundreds of stories in tens of books (the Bible), then you can always find a story of SOMEBODY close in some details to Jesus real-life story, or anybody else story. As @orenshani noticed is just probability use for an apologetic purpose.