Power break question

Throwing this out to the experts…
I purchased a brake booster through Summit for my Volare. Evidentially the booster is specific to an a-body, not an f-body. Below are the boosters I’m considering. Two questions:
1. Which booster do you suggest?
2. Will the booster pushrod connect directly to my brake pedal? Or do I need the swivel linkage?

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Author: Stonekij31