Industrial Chandelier - new armature

I am back to thinking about industrial chandeliers.  I have posted a few times before about them:

Here:

http://maxomoxx.blogspot.com/2011/04/design-idea-industrial-chandelier.html

and here:

http://maxomoxx.blogspot.com/2011/04/design-ideas-industrial-chandelier.html

But I was never quite convinced I was on the right path.  The big pulley I already had was just too big, but I think I have found a perfect gear wheel to use as the armature for my chandelier.  (By the way, I really like the word "armature" - it belongs in poetry or, at the very least, metaphor.)  

And here is a sketch of what I have in mind:

Happily, I picked up a heap of old chandelier crystals at the Santa Cruz flea market last summer.  

Now I just need to figure out how to drill holes in the cast iron pulley so that I can attach the wire loops.