I’ve been trying to track it down on eBay.com, but the only leaflet being offered for sale is for the whole project kitted out with floss and fabric included, and at $135! That’s waaay out of my ballpark, and I simply don’t need a kit. I offered to buy just the chart if the kit didn’t sell, but the (very nice) seller said no.
Going to keep on hunting, though. Fingers crossed!