Maybe let them copy the whole post and give me a link? They are a high authority site in my industry. Maybe let them copy up to 80% of it with a note to click to read the whole thing on my site?
I don't want to risk Google preferring theirs and losing my ranking as duplicate content. Their Moz DA and organic traffic are pretty close to my levels, if that matters.
Any other kinds of deals I haven't thought of?