French written novel to translate in English: Based on a true story WWII

My novel was written in French but I am bilingual without the time to do it. I may not have all the sophistication of a novel writer in English. the book is based on a true story starting during WWI, then WWII then ends in the early 90s. It contains 586 pages, 270,039 words and contains dialogues, facts, and has been professionally corrected in France. Please tell me if someone can take it and how much it would cost and how long it would take please.