Hi everyone,
We've talked about translating lists from one language to another. To see how difficult this is I translated the Dutch Rijksmonuments to the English Wikipedia. My notes are at https://en.wikipedia.org/wiki/User:Multichill/Translating_rijksmonuments (including some code). You map one language onto another and have the bot do it for you. It's possible to automate a lot, but you still need a lot of time to the actual translations.
Maarten