Puzzler, I was thrilled to see so much information you listed. WOW... You must type quickly or like to type.. I know that some people are not too fond of, or have troubles typing, or type using a few fingers...
Any way, thank you very much, for taking the time. Best to you, SueStamps
I have generally found eBay Germany (that's ebay-dot-de) to be MUCH better for kiloware than any of the others. "Kiloware" is its own sub-category in stamps (or "briefmarken" as it would be, in German), and there are generally 1500-odd listings at any given time (compared to about 700-ish on the main site). Fortunately, the word "kiloware" is the same in English or German.
I use an online translator to convert country names from English to German, although I know most of them by now.
Seems most genuine kiloware comes from Europe... maybe it's just a more common way to acquire stamps, over there.