It's going to share a number of applications, too, if you choose that script.
Remember, too, that you need to leave enough free space on the Safety Clone to hold temporary files, anything you're going to install over there, and VM files and the like. Don't be too stingy with the space.
If you want to know exactly how big it's going to be, run a sample one into an image (even a sparse image)...
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--Dave Nanian
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