Made some corrections to the text based on feedback from JT, and then started reworking the layout for clarity and better spacing. I've determined once and for all that the Scribus Story Editor is not up to serious work; a far simpler approach is to create a document in Open Office, and edit the contents there, then keep saving and using Get Text in Scribus to import the results into text frames. It's just as quick, and the editing actually works well. Printed lots of samples, tweaking as I went (I'm saving to PDF and then printing from the Windows VM to get proper duplexing). Added a single vertical divider line to help with the folding, when we come to do it.