Got impatient, it has be a very hot day and I have regatta coming up and there was a window to try fitting the gunwales. The extra clamps have not arrived but I figure I can add these later and pull the gunwales into place a little more later. It was evening when I fitted them so they where cool but smelt of wet wood. The wood did bend into place quite easily and I think the wetting and solar heating had an effect though to be honest it was not a massive.
Build time total 51 hours