No. That's not where we're at. We have the Apostles' eye-witness testimony in writing.
Wrong. We have Sacred Scripture and its authority only because it's proposed to us by the Church, particularly the successors of the successors of St. Peter. We believe because the present-day Church proposes it to us.
St. Augustine:
I would not believe the gospel myself if the authority of the Catholic Church did not move me to do so.
Sounds rather Prot-like.