There was a film in the 70s, I believe with Anthony Quinn, orignally called Muhammed,Messenger of God, but quickly changed to just, I believe the Messenger, where Quinn (geez, he played just about every nationality but African-American/Black) would 'talk' to Muhammed, then go from there. If I recall, and I've only seen excerpts, he'd be facing the camera, or where Muhammed was standing, and have a one sided conversation with 'him'. "So, you want me to tell the people? As you wish," type thing. (Is that called POV maybe?) I recall seeing ads on the subway platforms in London at the time, (maybe 76 or 78) but don't know if the movie ever made it to the US.
But, OP, you've done a great job of depicting him.
(just saw the blog. The movie was very much like that.)