Non-Fiction Book Proofreading and Publishing

I'm looking for a skilled proofreader to refine my non-fiction book. Key requirements: - Correct grammar, punctuation, and spelling errors in British English. - Ensure consistency in style and formatting. - Improve overall readability without altering my voice. - Format the document to 14-point Times New Roman for readability. - Obtain ISBN numbers for the book. - Prepare the book for hard copy publication and provide four printed copies of the final product. - Assist in listing the book on platforms like Amazon and Barnes & Noble. Ideal skills and experience: - Proven experience in proofreading non-fiction works in British English. - Expertise in book formatting and publishing processes. - Strong attention to detail and language proficiency. - Ability to meet deadlines and communicate effectively. Please provide samples of previous work, a breakdown of costs for these services, and an estimated completion time.