I would replace with Dyneema, super-strong , greater strength for its diameter than wire, easy to splice, lightweight, feels good to the touch (doesn't cut into your back), easy to inspect, needs fewer fittings than wire, low-stretch, doesn't chafe sheets and sails, costs less and looks better.
See https://www.sailmagazine.com/diy/know-how-replacing-lifelines. Jerry
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