You're doing great, Ryan! I make more booboo's by thinking too far ahead!
I wasn't so much thinking ahead, I just confused myself! LOL! I measured where the hole would go, but instead of marking the steel on the inside, I marked the outside. That made the hole off by the thickness of the material. Then I noticed it would sit in the drill press like that, so I just drew a line up the back, and around the edge to the inside of the piece. So, it was still off by the thickness of the material, and that is where I put the hole.