Hello,
we are top 10% freelancer for wix and preferred freelancer chosen by freelancer itself
we do understand we are not from australia/usa/uk but by reading your requirements it seems we are perfectly fit we can add language feature within 3-4 hours only
we have done recently small project https://www.freelancer.in/projects/php/Webpage-dispaly-issue-mobile/
where [login to view URL] is in wix website and we have resolved its responsive issue in 3-4 hours only
we are confident about your requirement , we can discuss on chat and complete your requirements
Regards,
Dhairya
Webiots