Not strictly "scavenged", but I used to work for the cannery here in town. They're gone now, but they'd been here since the 1890's under the same family ownership. Needless to say, they'd amassed a HUGE collection of stuff. A lot of it was stored in a garage/barn on the property. It was literally wall-to-wall and floor to ceiling, including the lofts.
By the time I started working there, it had changed hands 2 or 3 times, and the folks that owned it when I worked there wanted that barn cleaned out. However, being tighter than bark on a tree, they didn't want to pay anybody to do it. As a maintenance guy, I'd been through every nook and cranny of that barn looking for spare parts, so I knew with a fair degree of precision what was in there.
I made the Plant Manager an offer: I'll go through it on my own time without pay and separate the contents into three piles: Obvious junk that we should toss or recycle, stuff we ought to keep, and stuff that I was going to lug off for myself.
Somewhat to my surprise, they took the deal. Long story short, I lugged off two working welders (a Hobart AC/DC and a Miller DialArc 250 AC/DC/TIG complete with all the TIG accessories) a battery powered electric forklift, a humungous Hossfeld bender and a couple of truckloads of usable steel cutoffs. There was also a bunch of little stuff that went into my stash of parts/junk.
I sold the forklift and the Hobart for a pretty decent chunk of change, and made a really stupid mistake on the Hossfeld. I didn't research what they were going for and sold it for about 1/10th of the going price. Some guy drove 500 miles round trip to get it, which should have been a hint...