While it's outside of MarcEdit, my wonderful former colleague, Michelle Suranofsky, wrote a free Google Sheets add on that does what you're asking for. https://workspace.google.com/marketplace/app/matchmarc/903511321480
You can input criteria including cataloging source so you end up with what is hopefully the "best match" for your ISBN. You can get fields returned like the 264, 250, and 300 for checkpoints.
Lisa McColl, Lehigh University
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