With a wealth of free time and incredibly rapid typing speed I can easily complete several thousand words in only a couple hours. This makes me an excellent choice for this project if you desire fast, quality results. Also, I can and do perform several steps of editing personally before I ever share anything I write so that's one less step to be overly concerned over. The only point that worries me however is that you didn't list the sort of book you're looking to have written because, while I can manage anything, my styles are far more suited to fiction than non-fiction or technical writing
Please feel free to message me at any point with any questions or concerns you may have and I shall address them ASAP.
Thank you for your time and consideration and I hope to hear back from you.