Here is a before, wire brushed and after plating picture of some of the bolts, nets, washers I have been working on for the last couple of months (I am slow because I work on it 4 hours a week). I finished my last few nuts and bolts last Sunday and will start to reassemble the rear suspension next weekend.
I plated mine with a kit from Caswell and I did buy the rectifier for the electrical supply as well.
The whole process was enjoyable, I used a wire wheel on a drill and a vice to hold each item. Once you get in the flow of the different dips (chemicals and baths) it will go fast.
Rick, the amount of zinc added seems to be very small, and the amount of material removed by the wire brushing and the acid dip seems to equal the zinc added.