ewraysure, I'm sure you'll be around for a long time. Long enough to see your efforts in a Xara approach will be worth it.
Keep plugging and come back with questions.
You need to consider if your material is more a book that is read from beginning to end or one that has specific chapters, which can be looked at in isolation.
The former could be a Supersite, effectively one long page, a bit like a scrolling PDF. Its advantage would be in searching the whole thing at once. It still allows you to jump to headings and you can create Table of Contents.
It is what I would aim for if I was researching a history.
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