English-Swahili Marketing Translation

I need concise, accurate translations of my marketing materials between English and Swahili. All source files arrive as plain text, and I want the finished files returned in the same format so they can drop straight into our campaigns... (Budget: $15 - $25 USD, Jobs: Content Writing, Copywriting, Creative Writing, English (US) Translator, English Translation, Marketing, Swahili Translator, Translation)