Been following the thread. I personally don't like Gorilla Glue for mounting tee nuts. The glue expands as it dries, and you have to keep wiping off the excess. If you assemble the woofer wet, glue can get on threads, gaskets, etc. You will have one heck of a time removing the driver for servicing. Epoxy or non expanding glues work best.
Another way to insert tee nuts is to drive them in with a C clamp. No thread distortion at all.