I already knew some about your trip, but it's nice to get "the rest of the story". I'll look forward to the pictures.
I think you may like the kayak paddle if you try it, especially with a canoe that is not a "hard tracker".
I (and many others) have discovered we just don't eat as much on a solo - there's no "social aspect" and sometimes we're just tired. I made an extra effort this year to make sure I ate, especially between breakfast and dinner since I don't really eat a "lunch" either. I also made the effort to stay better hydrated during the day, although I had some mixed results ;). I think those two things improved my physical stamina and mental acuity.