You tape the binding together and bend it all at once. Use the blue tape as it does not gum up from the heat used in the bending. Here I am holding up the steel sheet so you can see the taped binders, but I am convinced that the steel helps to get a good bend.
Now the binding is bent. Once I get a little surgery done around the neck, and cut the end design shape in the body I will be ready to glue on the binding. I am optimistic that I am going to get it perfectly done this time.