Datamarine Link 5000 - time to replace. Suggestions?

link5000LINK5000-1 Lincoln Electric® Flex Feed® 84 Bench Boom Wire Feeder Boom, 24-42 VAC 1. Provide your delivery zip code or log into your account to get upMy recently purchased 87' C36 came with a period correct Datamarine Link 5000 and autopilot. While the Loran aspects (and autopilot) are obsolete, the depth and speed