Re: Ericson 27 Newbie Needs lots of advice.
Given how close those shroud chainplates are to the edge of the deck, if they need replacing anyway, I would just move them outboard and bolt them on the othe outside of the hull. You'll lose a little bit of sheeting angle; but not enough to worry about.
Like in this pick from the end of the second link, above:
Typed on my Underwood Finger-Flight Champion portable typewriter (in triplicate, using carbon paper), sent to my basement laboratory via pneumatic tubes, transcribed by Minions on a Commodore 64 (complete with 5 1/4" single-sided floppy), and uploaded to the Internets via 14.4 kbit/s modem. Ain't modern technology grand?