I made my own rig, braced under the forward thwart and clamped in place, i used some old 1" diameter gazebo ali poles as the mast, and then cut and sewn an old fabric tent into a sail, with a pole for the boom and a crude jib sheet to make it taught, looked great and i was really excited to use it....
But in reality canoes arnt meant to sail haha, the lack of a keel made it unstable and because i used mine mostly on rivers the wind was hit and miss....