No, you cannot legally download Kickstart 3.2.2 as a free standalone ROM file from a random website.
A: No. Kickstart 3.2.2 requires at least 1MB Chip RAM (A500 with a trapdoor expansion) but works best with 2MB. It will load on 1MB, but many Workbench components will fail.
3 seconds. Happiness: Unlimited.