Bell has been building canoes with a similar layup for years. Neither
company uses pure carbon, but a carbon/Kevlar layer and an outer layer
of carbon and clearcoat. Pure carbon canoes might be good for racing,
but I'd never take one into the wilderness. When carbon breaks, it does
so catastrophically, so you need to have some Kevalr or even glass in
the layup as well.

I have a Kevlar/carbon Wildfire that I like a lot. Can't say anything
about durability as I mainly use it for freestyle and you don't hit
things doing that.

While you're waiting for Swift, have a look at the Bells.

Steve