The back braces went in and the headrest was glued up with no mishaps.
After the glue had dried, I placed the chair on to the rockers and marked the positions of the four legs. I then drilled clearance holes at the correct angles in the rockers for screws that would be screwed up into the front and back legs, cut the transition curves on the bandsaw, and rounded over the rocker tops.
I secured the chair front down on the table saw, and attached the rockers to the chair with clamps for drilling through the clearance holes in the rockers into the legs.
Attachment 321947
After the rockers were screwed to the legs, it was time to give the chair a go and see whether any adjustment was necessary. If adjustment was required, it would have simply been a matter of adding a few laminations to the front or back legs as necessary. Fortunately, it sat at a comfortable angle, so there was no need for any changes. And at last it looked like a rocking chair.
Attachment 321949
Back on to the table saw, this time to clean up the leg/rocker joints.
Attachment 321951
I used sandpaper between the leg and rocker to fix the joints from this
Attachment 321953
to this
Attachment 321954
All that's left now is to fix up the back leg joints, glue the rockers on with epoxy, some more shaping, then a lot of sanding.