I've prepared a tarball that includes the code and data of the current read-only Wikidata/WiktionaryZ prototype running on wiktionaryz.org, as well as table documentation and the script that was used to import the data from the GEMET multilingual thesaurus. If you're interested in importing data into WiktionaryZ, this should give you the basic information you need to start writing your own scripts. It can be downloaded here:

http://epov.org/wd-gemet.tgz

A first prototype demonstrating basic editability should follow soon.

Regards,

Erik