I went ahead and tried to fabricate a nose rib today too. It turned out pretty well. I'm not sure I'll use it. I got a little close to the web with the crimper, and I'm not really satisfied with how tight the bend is. I need a total of 14 of these, so I'll probably make 16 or so and pick the best ones. Not bad for a first try, but probably not up to snuff either.
Overview of nose rib
Backside with crimps
Crimps probably too tight to the web. Live and learn.