I pull copper scrap for free at construction sites legally by, simply asking, by the hundred weight on a given week. And there are even better deals in silver. I went to a non-profit thrift for the animal shelter and found a bunch of silver for 20-30 percent of spot. They thought it was gold electroplated junk. hehe.
2 questions , how much does scrap copper typically sell for, and secondly, explain the silver part again, you buy it for 30% of spot? that's killer! in what form is it found?