Although I assume that Phil found a solution in the meantime, I'd like to resurrect this old thread. It might be helpful for others.
I used to use the AWB Wind Stabilization Kit on my Canham 7x17. It did help to stabilize the back standard (which is the "wobbly" part of the Canham). Please note that AWB supplies a wood screw that I replaced (and the aluminum profile custom machined) with a 1/4" threaded bold that attaches to the given threads on the Canham.
The kit comes with three solid aluminum rods that screw into each other. If you can live with a single rod, I'd go for a lighter carbon fiber tube.
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