I also was considering this one seriously. Now that I think about it, I believe that *all* of these mechanisms would be the same, that is, the keyhole is an integral part of the tumbler. I wonder if Kazack could let us know if he/she had the same problem, and how it was overcome?
Cheers,
dak
Here is a rough breakdown of how we built the container. Hope this helps
Super-glue will eventually break down. Did you consider 2-part epoxy?
Try JB weld. Works great. I have even fixed a hole in a car radiator with it.
Kevin