Here are some photos from last week, when we moved the first hull aside so that the second could be commenced.
Rather than get a big party out twice, to roll each hull separately, we decided to simply move this first one aside, and then roll it later, when the second one is ready too.
To move it aside, I stacked a couple of pallets on packing to bring them to the same height as the jig. With a few extra pieces to ensure that the hull did not fall down between the jig rails, I worked one end, and then the other, back and forward, using a trolley jack to lift by only millimeters, then rolling the jack and hull across onto the pallets.