Hey Mark,
If it were me- I'd follow Dmitrii's suggestion and fetch as Google after you post it. So long as you aren't doing 500+ more of these a month, I don't see an issue with that. As far as backlinks go, there are some sites (like meetup.com) where you can sponsor posts to get backlinks. Not sure if that would help your case or not-- you could always have your agency host a networking event and start building authority that way.
That being said, what is the goal here? Backlinks or getting credit for the content? Because once you post it and index it's yours.