I love those classic planes, nice to see them put to good use!
I saw this jig in the GAL journal. I am brainstorming a permutation of this for both sides of the dovetail, for those of us who want to cut the neck on the bandsaw. I will post my solution if I am successful. I hope to make it less dependent on abrasives, because of my (irrational perhaps) concern for dubbing and rounding. I am more comfortable with those old hollows and rounds than with sandpaper!
"No point in thinking outside the box until you know what's IN the box. . ." #Frank Ford