The cue does not strike the ball, rather a coil fired plunger does. On the cue ball wizard I had, the welds holding the support for the cue had broken and I had to replace the plunger. Not sure where I would look for a cue, maybe start with pbresource, but I imagine you might have to make a replacement. As for the targets have you started any basic troubleshooting yet?

The plunger was available from pbresouce as of last year. As for trouble shooting the switches start by reading up on the repair secions on pinwiki. Will get you pretty far down the road. The real catch is make sure you are looking at the gottlieb system 3 information as they use a special type of switch.