There's not much work to the deck in difficulty. I cut the king plank, cut the notch at the front where it meets the stem, and left it over length for trimming later. It was test fitted and marked for the curve in the deck from side to side. I screwed it in place temporarily so i could make my measurements for the decking.
I cut it well over size to be trimmed after fitting. The same was done with the side decking all the ways back. As I worked my way back I put in a few screws to hole the forward piece. the end cuts are the final cuts/joins. Once it was all fitting, the opposite side was cut and fitted.
In the meantime I sanded and installed the deck support blocks and mounting strip that would be a backing block for both the combing and the deck top. In the plan it called for a 9mm ply backer, but since I had the long wood on hand I installed that.
Time: 8 hr (several evenings)