Since I am 600 miles from home, simple solutions are needed until I am able to fabricate a more robust system for restraining the canopy in the unlikely ;-) event that it opens in flight. Here are a few pictures.
I use the bungee cord as my second set of hands while installing the lower cowl and had been looking for a storage solution. The ends go through the seat belt bracket and I purchased a hook at the hardware store for $1.50. The bungee is stretched fairly tight. The hook has been modified, ground down the tip, just need enough to keep the bungee in place and it is easily pulled off.
Not a perfect solution, but the canopy will not open in flight. Mission Accomplished!