These newer, easier tools don't seem to be easier to find.
I'm usually pretty good at this (at least I was two years ago), but google hasn't been my friend in finding a decent replacement for unswindle. I did find something called "tools_v3.4" but it doesn't tell me which version(s) of K4PC it's compatible with.
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Edit: Never mind. Haven't downloaded a new K4PC yet, but these tools work with my old downloads.