It might be a couple of weeks before I'm able to get some better photos, but I'll try to explain.
The wood frame/sliders, are just wood. No other parts. The roof only opens from the front and have two "over centre" latches that force them shut towards the windshield frame. Sewn into the vinyl fabric along each side is an elastic band to help keep a good seal on the outside edges. You can probably see from the photo the metal profiles that is screwed into the wooden frame to keep the fabric in place. The front and rear piece of wood are square - no curve, about 3" x 1.5". - (well, the thickness is the same as the slider track..). There is a metal "end piece" on the front and rear wood. Should be easy to fabricate.
It's a rubber seal on the front wood/metal part to help seal when the sliding roof is closed.
It's a great roof! I love it in late winter early spring when the weather is starting to warm up, and it's a great safety point when going over ice on lakes....