Reinforced fwd bulkhead to ensure alignment. A heavy steel bar was installed across the fwd bulkhead so that I can run a sting to the unsupported side of the bulkhead and check alignment. (to make sure the bulkhead does not twist during skinning.) Also started to install a beam down the center of the fuselage to support a board that I will use to crawl on to do the drilling. (Thanks for the idea Gary in the UK)
forward bulkhead stiffener
Support beam
aft end of support beam (no load on fuselage bulkheads)