The hardest part of making those parts would be the curved surface that the rubber bushing sat in, the big curve would be easy, its the rounded edges on the sides of the curved pieces (that contain the bushing) that would be hard to do. A guy could probably add a small piece of steel to those edges, or maybe even build the edges with a few weld beads. They would function, but wouldn't look stock. After that its just measurements, the diameter of the bushing, the width of the bracket, the bolt spacing and the length of the stud. I'd make them if I had a sample one, and the buyer wasn't expecting a repo parts. Gene