every part you have pictured except the strap type alt brackets is '71-74 usage with 10SI alt (the most common '71-76 case design). A nice used 11 bolt timing cover, the long alt bolt, & a common tall 11 bolt wp will get you there much more affordably than sourcing a rebuilt late '60's Pontiac V8 PS pump, brackets, & both matching wp & crank pulleys.
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Buzzards gotta eat... same as worms.
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