What are options for dealing with the water valve (the valve that is visable engine side linking the 2 heater hoses via the bypass hose; see arrow in photo) on a restoration?

Mine works fine, but the finish is poor. Do you look for a replacement or get the old one replated? Is the plating gold CAD? haven't seen these being repop'd. Mine is original or at least is a chrysler product as has a stamp. wasn't sure if it could be replated as there are moving parts invovled.