Drill Day!
I made a simple little squaring fixture so that I can drill the four different sized holes. I used a couple of pieces of left over Rosewood onto a plywood base.

First step is to drill the 3/32" holes. These are the six holes that the strings pass through.

Second step is to drill the 5/32" holes. These three holes will attach the tailpiece to the body of the guitar.

Third step is to drill the 5/16" hole just deep enough to countersink the head of the screw.

Fourth step is to drill the 7/32" holes. These are the holes that the ball end of the strings will seat into.

And now we have the piece with all of the holes drilled. View from the front.

...and view from the back.

Tomorrow evening I will sand the edges that require it and stain it dark to match the original. I was surprised how light Rosewood is after it's cut. The final step will be to bond it to a piece of aluminum angle.