And what would it be like without some troubles.  As I posted earlier, I made two pieces too short. These are the replacement parts.  I also double checked the plans and I will not need anymore of this channel beyond the one piece I still have. So I am golden.

    Here are two shots of my hinge drilling jig.  It bolts to the drill press.  Just put it on the press, set the drill bit in the hole for alignment, bolt it down and start drilling.