I see no need for Map Series enablement unless you are trying to do the below for many 6-page PDFs using an Index Layer.
Since only one of your 6 pages needs to have a map I think you should export the layout with that map to make a PDF file.
Your 5 static text pages can then be created by exporting perhaps Word document(s) to PDF files.
You can then use the PDFDocument class in ArcPy to open the map PDF file and append the other PDF files as pages into it. The PDFDocument class:
Allows for the management of PDF documents, including facilities for
merging and deleting pages, setting document open behavior, and
creating or changing document security settings.
If you did want to do the above for many 6-page PDFs using an Index Layer, then you could use a Map Series to export single page PDF files for each map, and then use similar code to append the 5 static text pages to each.