It has taken for-evvvveeerrrr, but it’s done.
The blasted eye is so blurry that I could only work for half an hour at a time, in good light. Half an hour at a time was enough in the end, though. It’s up and I think it looks great. I bought a length of 16mm dowel from Bunnings, together with a pack of jumbo Command® hooks. The pieces are not heavy, so the hooks were sufficient and I didn’t need to drill into the wall.
So that’s another one ticked off the list. Now I can crack on with my big project.
Once the eye is sorted out, of course.