Larian isn't small studio. They employ over 130 people, that’s Bethesda Game Studios level. They do voice acting for over 1M words using cast of around 80 actors - those are not some cheap folks, they hire well known actors. Their budget on voice acting is on Bioware's games level. For only small portion of this budget on voice acting they could do 5 additional localizations. If they don't want to do this localizations by themself, they could outsource it e.g. to local publishers.
Check the link for wiki
https://en.wikipedia.org/wiki/Larian_Studios it say 40 people, they might do hire actors for voice or hire people for recording music and stuff but those peoples are not part of the studios.
There is reason why this game is Kickstarted I do not wanna sound insulting toward folks at Larian but when we look at size of studio like Bethesda (which has almost 5 time more employees), and then look at Larian you cant compare them...
PS while I do love and Skyrim and Fallout, Larian makes better stuff way to go guys
on great games and respecting your community
