Share 'Source of Organic Cocoa Nibs?'

I am looking for a source of organic cocoa nibs to use as is (after roasting and/or caramelizing) as an add-in in a bar.  The chocolate alchemy site has 2 organic varieties for sale: Madagascar – Sambriano Valley and Dominican Republic “Conacado”.   I have a few concerns.  He mentions at the bottom of his info page:  "Where as these are winnowed, nothing is 100%. You may and probably will find sm…