I fabricated the F-741A from the "Z-Angle" stock and bent the F-741B per the plans. I drilled the holes in the supports and screwed them to the floors. I clamped F-741B to the supports after sliding it forward until it met the floor. I drilled the center hole for the platenut and clecoed it in place. Lining up the edges of the F-741B with the edges of the F-741A, I drilled the holes. I removed the cover assembly and countersunk the supports. I didn't bother to fire up the compressor, so I still need to dimple the F-741B, prime, and rivet the cover together. I removed the forward seat floors and deburred the holes.
