OSX: How to install gpg without Admin password

[Dan Bryant]

I have a monitored OS X laptop that I would like to put GNU Privacy
Guard (gpg) on. Of course I can't because I don't have Admin rights,
but I was hoping there is a way to install it in user space through a
virtual environment or chroot, or some other wizardry, or by exacting
the package files.

Obviously I only need console access to the app.