So just to follow up. I had installed an H modem from flvpmods and the official ford f150 antenna, but nothing worked.
I updated my AsBuilt with the screenshot that @bookemdano posted, and the car finally started to lock/unlock!!
I followed these steps, 1-5, and the part that was the KEY to this, was the part at the top about enabling fordpass on the Sync 3 itself. Once I did that, I ran a vechicle health check on the Sync console,and all the data started flowing immediately
I am up and running, and it is beautiful! All functions seem to be working on Android. THANK YOU ALL!!