My 2 cents ...

I personally don't know the Swift Keewaydin 16, but based on its layout, it seems the most easily adaptable to solo use.  If you sit in the bow seat and paddle the boat backwards, it looks like you are good to go.  All of the other canoes would need to have the "permanent" yoke removed in favor of a removable option or don't lend themselves to a "paddle backwards" option based on thwart location vis-a-vis the bow seat.  (I assume you are trying to avoid paddling from the normal stern position which would be somewhat problematic in a cross/quartering wind.)

dd