Added stiffener rib and stringers to inside of top skin, drilled. Also attached and drilled the gussetts at F-706 and F-707/longerons. Next step is starting interior parts - baggage walls first. I will now take a break and make the fuselage rotisserie. I will convert the old wing stands and attach them to the firewall and tail so I can rotate the fuselage in any way to save my back. Plus, the whole thing will be on rollers to slide everything around for room. I should be done by 6/15.