How can I duplicate one feature of this layout from 'House of Leaves' in a 100ish-page book using LaTeX?

(I'm presently using memoir for document formatting/structure.)
The specific feature I want to duplicate is the blue-bordered box. It'll appear on every page of the book, always in the same spot. On the left-hand pages it'll contain an image; on the facing pages, a paragraph of text. The paragraphs won't flow continuously from page to page - i.e. it's not strictly speaking a 'parallel' column. It's just a boxed element in the same spot with different content on every page.
Because it's a longish book and the main text is still somewhat in flux, I'd like to do this programmatically rather than by hand -- to issue, ideally, a single command (or one each for images and text-chunks) that causes LaTeX to populate each page of the document from a list of images and text-chunks.
Is this possible? If so, how do I go about it? If this duplicates another question, I'm sorry -- on my own I couldn't find an answer to my precise question.
