I got the left side brackets deburred, cleaned and primed. I also painted the exposed parts of the brackets with the gloss gray I'm using on all the exposed metal in the cabin.
I modified the Crow harness anchor hardware with a new hole sized and located to work with the Vans brackets. It took a while to drill through the hard steel but they turned out great.
I then started working on the right side and got the aft bracket located and rivet holes drilled much quicker than the left. The tight fit angle drill was mandatory for working on these brackets.