When trying to use beta.wmflabs.org to test (https://www.mediawiki.org/wiki/Thread:Talk:PDF_rendering/Test_instance_and_bug_triage ), I noticed that only simple.wiki got content imported and he.wiki has a partial import (3k pages).
All articles and templates (if not all pages), current version, need to be imported on the following existing wikis: ar de en eo fa hi ja ko ru sq uk zh. Or you could leave en aside as it's so big and we already have simple in English anyway.
https://meta.wikimedia.org/wiki/Data_dumps/Tools_for_importing can be of use. Needs to be done server-side because Special:Import timeouts after few dozens MB.
Version: unspecified
Severity: enhancement
URL: http://dumps.wikimedia.org/