The TSB you found doesn't appear to apply to the codes pulled:
https://www.yourmechanic.com/article...-jamahl-walker
https://www.autocodes.com/p1744_ford.html
https://www.yourmechanic.com/article...lerie-johnston
Given the descriptions I don't think I'd worry about P0297.
The other two indicate an issue with the torque converter clutch. Don't know enough if they'd have to drop the pan for that or not--you could just have a disconnected wire to the TCC but that may be in the transmission (if the code lookups above are correct).
As far as working with Ford I think you are already doing as much as you can.