Sorry, but Mary in my mind does not bring about gifts of eternal salvation. She was obedient to God and was blessed by God. That's it.
In talking about great faith, Paul does not talk about Mary; instead he talks about Abraham as our example.
There are a few things we know about Paul from his own letters and not through the perfumed lens of the Book of Acts. One of them was that Paul did not particularly consider women to be anything as far as the Church was concerned.
Not only did Paul not know Jesus in person, but by the time he died, I seriously doubt he even met Mary or if he did meet her he probably did not take extra time to honor the Mother of the Man he claimed was his God.
So change your mind. Metanoia, you know.