I have a degree in Journalism and about 30 years of experience writing and editing. I spent about 20 years of that career in Marketing, including as a senior level director, and am very familiar with the type of piece you are trying to craft. After all that, I myself opted out of corporate life and currently both freelance and run a small resort for people who really WANT to escape the corporate rat-race but haven't managed it yet. So, I can totally relate to your checklist on pretty much every level!
Send me your piece and I'll finish it up for you right away so you can concentrate on your launch!