I went with a bargain-priced timing chain kit when I did my build, and one of the tensioners failed within a couple of months and the engine skipped time. No internal damage, which was a miracle, but I replaced both tensioners with name-brand units afterwards and it's been fine for a few years now. So Cloyes or Melling are both quality brands for timing equipment.
Those bolts are gonna be a problem; you might have to get creative to find those.
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