Not really a step-by-step, but I had a series of posts on my blog that thumbnailed some of the mechanics as I went through the process:
The gauge is right, the OEM radius rods are 12ga, and the taper looks about right, but you'd have to do something on the ends to mimic the ends of the back legs of the OEM springer, so they will take the rocker pivot pins. You could do it, with a little thought. On the OEM rad. rods, all you have to do is heat the ends, and bend them straight, then build up the hole so you can drill them to take the rocker pin's threaded section.Irish Rich, Don't know if the taper is right or if they'll work, but Speedway is selling split radius rods now.