September 2016
In order to trip the edges of the hatch and deck timbers I used Milliput epoxy putty. This will prevent the deck timbers splitting when hit with the router.
It's a messy operation so best to mask up the wood first. Fortunately this putty can be smoothed with a wet putty knife.
I suggest removing the tape after 12 hours, before the putty is rock hard.
A scraper soon has the caulking flush with the deck.
I bought these stainless hinges off eBay. they have sufficient play to accommodate the deck camber through the hinge line.
Here's the proof it all works. The starboard hatch need a little work as the rear edge catches on the hull aperture, nothing a block plane cant fix.