You will get a LOT more if you disassemble the motors and retreive the copper seperately. The scrap yard will pay minimally if you don't. The difference is substantial--50% or more.
Having said that, have you tried to sell them in as-is condition? Motors that size are rare and prized. You will get much more if they are running, or even if you cna just warrantee the aramtures are not shorted to ground.
--Root
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I killfile any poster that offers up off-topic content, in reply to someone else or not, it doesn't matter.