Riveting Bottom Skin

Back in the shop after a few more days out of town. It took me awhile to figure out the best way to rivet the J-stiffeners to the skins. I referenced a couple other build logs to gain some insight to no avail. The book has you riveting this upside down but I just wasn't comfortable doing it that way. Using shims and clamps I finally found a way to secure the assembly to the sawhorses in an upright position. Riveting solo was just more comfortable that way. Got the riveting started but lots more to do. I also bought a cheap LED lamp so I could light up underneath for better gun placement.