Bilingual Website Design & Migration

I need my current English-only site rebuilt into a fresh, responsive website that supports both English and Arabic from day one. All existing text must move over exactly as it is, then be professionally translated into Arabic (and any Arabic I provide back into natural-sounding English)... (Budget: $15 - $25 USD, Jobs: Arabic Translator, CMS, HTML, PHP, SEO, Translation, Web Development, WordPress)