As a track for an after effect recovery I'd probably go with one of my favorites and something I discovered from an RP I joined that sadly never got off the ground. 

[url=https://www.youtube.com/watch?v=piFJVwr1YYA]Myuuji - Disintegrating[/url]

I mean technically all of Myuuji's tracks would probably fit a dark near/post-apocalyptic civilization recovery sort of theme.