Hey,
I can help you to create a checkout page in a specific language in WordPress with WooCommerce as per your instructions.
I am a senior web developer with extensive development background. I have more than 8 years of development experience, in-depth skills of website design/development and scripting languages such as PHP, MySQL, HTML, CSS, JavaScript, jQuery, WordPress, eCommerce, Woo-commerce, WordPress plugins, and search engine optimization (SEO).
Message me so that after doing a detailed discussion with you I could start for you.