Just my two cent’s worth if you are new to working with these I would go with epoxy you will get a stronger bond with the wood and more time to work with it, polyester can go off very quick and if you are not used to working with it you might end up in a mess. I use a lot of “west systems” epoxy it is more expensive but for the size of a canoe it shouldn’t hurt too much you can also buy it with pumps that make it very straight forward for mixing and they have lots of videos on their web site if you need any help.
Best of luck.