I can't offer much help as I haven't opened many up despite being in the biz...The amount of copper in each type of compressor can be inconsistent though. The very large compressors have more value as a core then they do as scrap.
My yard takes them as shred but if you drain the oil the payout is a little more. When I replace A/C systems I will remove the coils, wire and copper pipe and the rest goes in the steel pile , including the compressor, unless it has core value. Maybe sound like a waste but there's only so much time in the day.
Here's a link to the different types of compressors.
https://www.airconditioning-systems....ompressor.html
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