The OPs auction was copied. A few words were changed or added. A couple colors were switched. But it was still copied. The formatting is the same. The punctuation is the same. The capitalization is the same. There are parts of the listings that could not possibly have been copied from Busse's website, but still end up in both auctions.
Why does it matter if he HBE sold the knife or not? That's not the issue.
If HBE's listing was just specs, then it would be stupid to say it was copied. It wasn't.
Let's say I open an online knife shop. If I cut and paste A.G. Russel's web pages to my site, and just change a few words, I'm in the wrong.