I got the hatch foamed over the weekend.
I went with three 1/2" sheeets of foam. I glued the sheets with construction adhesive, and went around the edges with Gorilla Glue. Then used wood strips, and screws/fender washers to secure while the glue dried.
I decided to do it that way, to try to get around cutting kerfs. The 1/2" sheets bent very well.
The gap between the hatch and the trailer body will be filled up with a combination of wood and weatherstripping, after I apply the canvas.
When I get the trailer lights wired, I will cover the inside of the hatch with lauan and install a couple of "kitchen" lights.
Things have moved pretty slowly, but I'm about 90% with the wiring. Four 12 volt plugs, two reading lights, four OH lights, fan, kitchen lights and trailer lights to come. Then it'll be time to put a roof on!!!
Mark