This looks really good, but I’d love to see some of the stuff from the end — about thinking about the variety of ways one needs to engage with sources — come earlier. A lot of student research behaviors involve a kind of trolling-for-expert-quotes type of reading, in which they aren’t really paying attention to many other ways sources can be useful.
I have an article that’s sort of on this — it’s more about analysis, but gets into some of the writing-with-sources issues. (Not the FINDING sources issues, which you’re mostly covering here.) It might be useful. And might make this point more coherently than I can off the cuff.