Moved the main left wing assembly off my workbench to make room building the outboard leading edge. Fabricated the LE supports from the template drawn on the shipping crate lid at Vans per instructions. Initially fit and numbered all ribs. Ribs flanges are square and required little to no fluting, owing to the process Vans is now using to make the ribs ( these arrive without vinyl and have machining marks and scratches). Starting with the outboard rib, nearest the landing light, I filed, deburred, and polished the edges, inserted into the skin resting in the cradle, fully clecoed and match drilled the #40 flange holes to skin. I then removed the rib, deburred the holes, dimpled the flanged, applied a single coat of primer, and then reinstalled with alternating clecos.