Detachable Yoke

I’ve been trying to search online for a yoke that can clamp on the the gunwales of a Old Town 119, but it seems impossible to find. Does anybody know where to buy detachable yokes?

here
http://www.chequamegonadventurecompany.com/removable-yokes-for-solo-canoes-121.html



http://www.chequamegonadventurecompany.com/removable-yokes-for-solo-canoes-121.html



http://www.hemlockcanoe.com/price_list.html



http://www.paddlinglight.com/articles/solo-canoe-yoke-plans/



http://www.canoeing.com/gear/canoegear/yokestumplines/

Essex Industries
Essex Industries sells this detachable yoke which should work:



http://www.essexindustries.org/universal-slotted-yoke/



Or you could just get a set of yoke clamps and make your own using a yoke of your own choosing:



http://www.essexindustries.org/aluminum-clamps/

This is very helpful
Thank you.

Made one
I made the one on paddling light. Works well, easy to make. I did’t use the attaching system they use . I used small pieces of wood that screwed on to the clamp and then swiveled to hold it on the seat. Works well.