I built a Tern 14 a few years ago. It is a great boat, the kit was good but the instructions were horrible, and no fixtures were available. I'm a cabinet maker and worked through the issues, but i sure hope they got better at instructions.
I added banding to the cockit coming, to hide the plywood. I also modified the hatches, making them smaller, they are sized for the bigger boats. I put internal ribs under the hatches so I would not have to put those ugly half rounds on top of the hatches. I also made up mahogany cleats to secure deck bungies in an elegant fashion. It came out nice.