I managed to glass the deck with 3 sections of glass.
An overlap across the deck at a point where and extra piece of glass was required for additional reinforcing.So the join does two jobs at once. The cloth wasn't quite wide enough and so another section had to be added near the gunwale. That area will have to be faired once the wingnet lacing tube is added anyway.
I used drawing pins to hold the glass in place until I had enough resin on the cloth to keep it there. Then the drawing pins were removed. Some pics are below.
Here is a pic of the hull under a vacuum. Unfortunately I didn't take a pick of the deck under vacuum.