Your MErc is a 1962. Teleflex makes a good line of aftermarket replacement cables at reasonable prices. For Mercury, they claim their "CC179XX (600A type)" fits Mercs from 1965 up. For your 1962,, maybe you can still adapt the ends to your motor using some of the hardware you have. Here’s a link and click on the model number for photos. Unfortunately, the shortest are 10 feet. I have used several of their cables for pre-1979 Johnsons with great results:
http://www.jamestowndistributors.com/us … tion+Guide