Brief Description: 2: Front Deck and Instrument Panel
Here's how I aligned the small angle brackets F-721C and F-721D that go behind the instrument panel. There's one of each on each side.
Photo 1: First I clamped a piece of angle across the full width of the instrument panel opening, attaching it to the bottom tab of F-7013B-L/R. To the angle I then clamped the F-721C brackets. This ensures the brackets are aligned to F-7013B when drilling the mounting holes.
Photo 2: With F-721C clecoed in place I removed the angle piece. I then made up a small L-shaped piece from scrap 0.063" aluminium and clamped it to F-721C with the "L" extending downward. To this downward section I then clamped the F-721D bracket and drilled it mounting holes.
Photo 3: The finished result with alignment pieces removed.
With F-721C and F-721D in place on both sides, I then reinstalled the instrument panel and match drilled the screw holes.