The "Help wanted or offered" section of the forums seems to be the best place to find translators. If that interest you, you could check the Spanish translation of my game for errors an inconsistencies.
Honestly I would prefer to work on a translation from scratch as most likely the translation done from another person will be perfect already imo
Do you translate to Spanish (Latin America) or Spanish (Spain)?
How significant are the differences between the 2 variants?
Return From the Tavern only has a Latin America variant.