Tim,
Thanks. I was thinking that the bracket was a cast piece. Not wanting to booger anything up unnecessarily, I thought I'd ask. It is disappointing to hear about your experience with the different vendors and their respective fitment issues.
I guess my next step is to find a very complete drill bit set and step up to the plate! It'll be a couple of days before I can get to it, but I'll keep everyone posted on how it goes!