I did an inspection, marked the spars, and began figuring out what the next step is. The answer is fuel tank nut plates. I messed around with several setups before I found one that I like, and began final drilling the attachment holes. In the process I actually broke a countersink bit! I also did a major clean up of the garage and some more organization. I should be able to get some real work done on the spars in the next session.