Writing Coach / Editor

I'm looking for someone who has published a book(s) to help coach / guide me with my writing.

My aim is you write a book over the next 4-5 Month, with the view to writing a chapter a week.

I would like to get your feedback on the chapters each week and would like you to edit/spell/ grammar check.

Ideally, I'm looking for someone with experience in book writing to help me reach my goal, being a published nonfiction author.

This is a bit of a side project, so I dont have a huge budget, so please consider this.