What's the Hexamene block for? I use them for cooking, but you don't seem to have anything that will serve as a pan. The ones I use burn for about 10 minutes.

Does the butane lighter use a flint? Apart from that, you seem to be relying on matches for fire. I would carry some kind of flint rod or a Sparklite or similar, and tinder.

You might try to find a way to carry parachord. Apart from the usual uses, it might help you retrieve the canoe (and gear) if you get separated.