When hunting for bargains, use fast search engines. Enter the key word of the manufacturer's name followed by the part number. The two engines I used were Alta Vista and Inference Find . Almost immediately, six or seven websites selling the cartridge appeared. When buying from a totally unknown, untried, non-recommended source, the layout of the website holds an important factor in determining where to buy.
First impressions are important.
Their voice machine answered. Press 1 for sales. I was assured that I would be called right back. On the first ring, a gal with a pleasant voice answered. She said that the cartridge would probably be shipped from Chambersburg, PA and I would have it the next day.