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.