I have taken the next step with my python script for auto posting. My previous script simply posted my preferred text and added a generic content warning. I have now updated my script to include a custom content warning of my choice (or none at all if a post does not warrant it).
It requires that I create a custom CSV file for my preferred post text and content warning. It is a small price to pay (5 min per week) to update the CSV file to include the latest posts & upload to my Raspberry Pi.
If you are interested in my script I can share it via Github or other service.