A long day of work at the hangar. Riveted the forward edge where called for the instructions, then riveted on the hinge ribs and bracket (2x) and prepped the most outboard and most inboard skins and began riveted the first skin in place. It's a LOT of riveting. No issues encountered other than I'd fit the wrong skin after going through all the steps of removing plastic, priming etc., but I had to do the other skin eventually anyway.
