Dennis - That is really a neat trick. That is super clever. I'm sure not easy to drill a hold through the center of say a 4-40 threaded bolt shaft and I'm sure its tricky to try to pull that assembly back and through the original hole in the plane, but with time I'm sure it works. Very clever. Well my technique worked and I'm attaching a picture of what I did. I chose my way only because I know when I 'unseated' the blind nut in the rear of the plane, I chewed up the wood that the teeth were mounted in. So with that said, I felt better to try and get another piece of small ply in that area. As you can see from my picture I just made small cradle and used a long push rod to get it to the back of the plane. I used 30 minute epoxy on the bottom of the cradle and I put some light lithium grease in the blind nut hole to prevent epoxy from getting into the threads. I then used a shorter straight push rod and from the bottom outside of rear fuse I lined up the blind nut hole with the short push rod so I was centered over my original hole. I then pulled the long push rod out and let the cradle fall into place. I taped the shorter rod in place and came back the next day, removed the short push rod and had inserted my new threaded bolt in place. Worked fine.