Thanks to both Beat and Gilles.
I have loaded them successfully. The catch: these aren't impulses (that I knew), and they're *not* presets (that I didn't know). So they don't show up in Settings drop down. If you save a "New Preset" default file as a tracer (to discover the right path), and then drop Beat's files into that same folder, they still won't show up as a Setting. Settings, I have learned (the hard way, as I learn all things), are aupreset files. That's what shows up in the drop menu to the left of the Copy / Paste boxes.
BUT, if (as Gilles said) you open LOAD, which is just above the graphical window, to the right of Factory Presets, a-ha! There is found the work of our magnanimous friend, Mr. Kaufmann.
And "New Preset" will be there too.
The confusing part is, "New Preset" also appears in the aupreset drop down menu after it is saved, leading the user to think BK's work should be there too. I dragged BK's files into that folder, but they're not aupresets. So the Settings drop menu won't show them, even if they're in the folder.
I look forward to learning from this work as I have learned from all your contributions here, Beat. The examples you put on your site of Close, Mid, and Far were immediately helpful. Thanks again.