Welcome @John Boatright .. a lot of opinions around tuning or keeping it stock. I'd recommend reading around here and taking in as much as you can, then it will help with your decision.
Back on topic:
Looks like these same emails can be found here? ..at the bottom.
https://jalopnik.com/baffled-by-dieselgate-emails-reveal-fiat-chrysler-stru-1822737746
Do you store your truck in a garage? With that said, I wonder why some freak out, and others don't? Many reports here of the cold weather causing many issues.
That's about right for the prep work included. Paint correction is a fine art, and you truly have to know what your doing. I did my last truck myself in the garage over a weekend, and my arms were noodles by the time I was done. It was only a paint sealant though at the time. I wish I had of...