I made some good progress today. I got the press stripped down, bead blasted and primed. Here's a photo after it came out of the blast cabinet. My wife found a nice hard wood ball at a craft store. The ball is 1.900" diameter. So I bored it for the 5/8" shaft, and then turned a groove on the end of the shaft. I plan to epoxy the ball onto the shaft and the groove will give the epoxy a mechanical lock the shaft. All the blued pieces cleaned up surprisingly well with 0000 steel wool and oil. I'll just touch up a couple spots and those parts will be good to go.
I'll give the primer a couple days to dry thoroughly, then spray the hammered gray/black.