The last two nights have yielded some progress. Yesterday I finished reinforcing the fuel filler neck. I'm just about where I left off before deciding to add more capacity to the fuel bays. Tonight I laid out the holes for the fuel probe, and measured for the appropriate length. In the next few days I'll order the probe for the left wing. Also today, I continued cutting out slots in the lower wing skin for the flap hinge hangers. The first slot is pretty ugly, but the third is shaping up nicely. Learning curve.