Seein' as how you have that machine shop setup and all, and sound interested in this(and can't seem to locate Boogieman, unfortunately), tell ya what Jack...give me a couple o' days and I'll remove one of those brackets from my bike and take some new pics of it(they're pretty much mirror-image copies of each other with a slight 45degree grind on opposite sides of each) while once again holding up a tape measure to it, and I'll download those pics into this thread for ya, and give ya a quick writeup about the process.
It only took me a few hours to make 'em, BTW.