Rick,
As I mentioned elsewhere I've built several of these and broken off more then just one cabane, nothing unique in that I'm certain! As long as you've got three unbroken just pre-pin the little devil and attach the cross rigging at one end, then pop it into place when you mount the upper wing. I managed to sweep THREE of the little "8&TYZ*&O*AE&" things off on my first one; solution was a template to get them on at the correct angles and spacing. Looking really great so far, it's a jewel of a Kit other then the easy possibility of cabane destruction.
Cheers,
Lance