Then…I think it would be wise to have a designer look at the document and make it easier to read (layout). The purpose of this document, I presume, is to have a printed copy/pdf/bookmark on the front line supporters desk(top) and they have to use it a bit as a flow chart, working their way down to eliminate issues. For that reason, I suggest a clearer layout.
Can you be a bit more specific and go a bit more into details? I like way where the suggestion goes, but I'm nut sure I understand and/or know how to get there and how the document would look like at the end...
For example, In section 6, I would frame the indented text of the http://isp.test-ipv6.com output, and highlight the actions. So you can see in one blink the result and what to do. I don’t know, I’m not a designer, but I have seen them do remarkable things for readability of documents :D Maybe one of the designers of the RIPE NCC can help out. I can ask them to make an example if you want? Cheers, Nathalie