I had some time today so I thought I'd check the gasket surface on the head. To do that, I laid a piece of sandpaper on the machined bed of the mill and rubbed the head back and forth. The gasket surface looks good and flat. Next I bolted the head to the mill and using a ball end mill, cut a fire slot to promote combustion. When I install the spark plug I'll index it so the open end of the tip points toward the valves.
I also put a picture of the light on my mill. I bought one of those LED light rings in a diameter that fits around the spindle. My son wired it up using an old 12 volt charger so I don't have to use batteries. Works great and puts the light right where I need it.
Next I'll install new valve guides and cut the valve seats.