I got ahold of Bridge Kitchenware. They did not have copper inserts for 5 qt mixers -- the actually had heavy copper bowls with brass handles! I am checking to see if they have any left, since they are discontinued.
They have two left! They are scratch and dent left-overs. They were originally $185 plus shipping. I am buying one of them for $127.50 shipping included! Here is the email address: email@example.com
I saw one on Ebay a few weeks ago, but it went for about $120 plus shipping!
What did European Kitchen Bazaar say on the copper insert? I have their old catalog here.