This turned out to be a very easy and very quick job to do, so much so that I had completed the tip section and still felt I had enough time to complete the middle section too in that evening.
Saturday morning and there was only a little damage to the starboard wing, which was completed in a couple of hours. I did have to cut out some damage to the wash out fin tip and fabricate a new piece. It just needs a little more sanding to shape.
So here are both of the repaired middle and tip sections completed and ready for covering.