Nice bikes, but I know all about "drillium" and those chainrings are not representative of the real thing. There was no decoration, it was pure unadulterated folly. If it is done perfectly, or with any degree of embellishment, it's not legit.
Don't get me wrong, it's nice. But it should be a little awkward and uneven. It was basically up to a guy in a garage with a drill press, and a supply of marijuana cigarettes.