78 20ft Master Angler - what to do about recessed handrail

[Stevebbc]

This handrail is in good structural shape but the finish has dulled. Can it be polished or I was this thinking about having shorter ones about 4ft long made for each side out of stainless. Many of them have been eliminated on pictures I see.. Any ideas. These were were often very handy on the 23' I had.