Choose location of book info on post by post basis

I often work with some people for reviews/book blasts that require me to put a banner at the very top of my post. I prefer that the book information be at the top of the post most of the time, but for those specific posts, I need it to show at the bottom. I’d like to see the option of whether the book info from the plugin shows up at the top or bottom of the posts to be on a post-by-post basis. Perhaps just a check box in the plugin area asking where you want the info to go? Thank you!