Hi Puddle Jumper and Congratulations
I almost purchased one in NZ. She is named "Compass Rose" and she too had chainplate corrosion
problems. I contact the Frers design office and they are great to deal with. For a very small fee they sent construction drawings and were very helpful WRT how to go about the repairs
. Give them a go. Long story short we didn't proceed but another lucky Kiwi did and Compass
Rose now graces waters around Nelson and the beautiful Tasman Bay on the top of the South Island. She looks real pretty to my eyes and I still wonder if I made the right call with her....