Customisation to an existent site

Hello all, I need my website to be customized. This project's scope would be to turn the site into a multilingual site. 1. The existent feature of importing and exporting a language (in xml) is broken; this needs to be fixed; 2: the dynamic and static pages need to be in several languages; 3. connecting geoip to language preference. I need a changelog. No upfront payment will be made as it is a small project nor milestones. For the developers with experience in setting up a multilingual site, it is a quick job. Best regards.