Originally Posted by SloopJonB
In this case, due to the heavy cap rail and rubbing strake, that would NOT be the easiest or simplest method. It would require either complex bending & shaping of the chains or a lot of work cutting slots in the noted trim.
Bolting them to the inside of the hull in their original positions avoids all that. It does involve a lot of ugly cleanup work of the old glass though.
And it avoids the Ugly bit of having the chain plates bolted to the exterior of the hull. I think it looks like a "cheap and easy fix" when on a boat that did not have it originally. It does make them easy to inspect though.