Looks good. Flat black was a good choice. I painted my KMG battleship grey. I'm concerned about the location of your gas strut. If you connect it to the idler arm where I think you are going to attach it, it will form the hypotenuse of a right triangle, and will not exert the full 30 lbs on the arm. I'd have to brush up on my trigonometry to calculate exactly what it would be. I think it should be mounted more like your temporary wood dowel. Think about it. If I'm wrong, so be it.