I cut, filed and marked out the main plate that everything will be fastened to. I've just got to sit down and work out tapping drill sizes for some of the threaded holes.
I started Turning the outer edge of the base down to size so it can fit in the clamp of the drill press.
Meanwhile, I've ordered the adapter plate for my 4-jaw chuck. If all goes well I should be up to drilling the cylinder by the end of the week.