Alrighty. A little update. I didn't feel like tearing my friends e30 totally apart so I was forced to mount it this way.

The brake shield has to be removed, but in order to do that, I would have had to pull his hubs....way more work than I had intended on doing at 9:00pm... But you can still see that the holes are in the correct locations and that the caliper mounts just fine.
I am going to be sending everything down to friend to install on his car probably tomorrow or the next day to verify proper fitment, but its should still be ready to go at the end of the group buy.
Matt