Today I made great progress in four hours. However, I did make a mistake. In photo 1, you can see the notches don't match up in each carry through. You lay them out by cleco'ing each carry through to the other through pre-drilled holes. I haven't figured out what I did yet, but will fix it in the morning. The extra center notches in the left carrythrough are too far outboard of the one on the right. The new ones will be slightly bigger. Later, I will decide whether or not I need a patch. Then, I riveted Stations 5&6 together, photo 2. In photo 3, I am fitting the float attachments between Stations 7 & 8.