I don't get on with ant. Your suggestion works for locating my SDK, but it doesn't take my KDK. Complains about UTF-8 characters in Marcus Mei?ner and missing log4j, Kindlet and more.
I downloaded the jar files from my Kindle, and modified the nblibraries.properties to reflect that I put them somewhere else and I have Kindlet 1.3
I also tried passing -lib and -propertyfile to ant with no success. I'll try again tomorrow.