Before I continue to apply paint and varnish, I will be drilling all the holes for the fasteners for all cleats, lights, eyes and so on. There should be no need to drill through painted surfaces later. It will also be easier to patch a hole, if one ends up in the wrong spot.
I also started to make up a floor for the footwell from some 12mm (1/2″) Tassie Oak. The slots are 10mm (3/8″) wide and about 150mm (6″) long. It will have three sticks, about 1/4″ thick and 1″ wide, running fore and aft on the underside. This will let any water drain out.