Publish your ebook on amazon kindle, then publish on CreateSpace for the physical copy to be available and then have an audiobook made with audible. You upload your book and then you run audition for the speakers who will record your audiobook and in return you split the profits with them or you can pay a fee outright for there service.
To start with the Kindle process isnt to complicated, just youtube it but don't fall for the gurus that will try to sell you their overpriced courses.
Not sure how much experience you have but you'll need to get a book cover made and the reverse with the book blurb. Got to market the book and research the tags and categories it will be best suited for, IE which category will it get the most sales in.