I don’t see anything there that could not be made with: some steel, two bolts, a hammer and an anvil and a welder.
I've been trying to find the exact same brackets for my 87 D250, can't find them. The new bushings are easy to get, but the brackets usually rot where the end link bushings fit onto the studs & I can't find them anywhere. I had to re-use the ones I had, using the old bushings that go around the strut rods. (a PITA to remove) Someone must reproduce these. It's only used for hauling scrap, but other people must be in the same boat that need these for their NICE trucks.