Even if you try to build your own which isn't terribly difficult if you have welding/cutting tools, finding turnbuckles isn't easy or cheap either, and I haven't found the exact kind of turnbuckles that are on the Satoh Beavers. If you go to McMaster or Grainger you can find the parts to build similar ones, but you'll end up paying at least half just for the parts, then you'll spend half of a day fabricating them. My turnbuckles were siezed up but I freed them enough so they are useable, but they also need to replaced and I'm not inclined to do so yet.