Top Quality Ebook Writers / Ghostwriters on Marketing

I am looking for a top notch ghostwriter / ebook writer. I need someone who I can either give ideas of topics and they can write great content, or turn small content I wrote into great ebooks that are worthy of being an ebook on Amazon/Kindle. The overall goal is writing material that showcases my work and gets people wanting to read it and be helpful too. I think Ghostwriter may be the appropriate term here.

Please link me or attach writing samples, and also if you have ebooks or books you wrote or ghostwritten that are on Amazon please link me. *APPLICANTS WITH LINKS TO AMAZON BOOKS WILL BE PREFERRED*
Also, tell me on average how many words you can write in a day, or the length of time it takes to write a 20,000 word ebook.