How to install minimal Kicksecure

Pretty much unsupported. Not a use case planned to support.

You could look at kicksecure-meta-packages debian/control and choose any package(s) there. Perhaps kicksecure-dependencies-cli.

kicksecure-meta-packages/debian/control at master · Kicksecure/kicksecure-meta-packages · GitHub

discussed here:
How do I install Kicksecure without installing or using anything Tor-related?

Swap file, not swap partition.

More information including disabling here: