What you have at this point is a word-count. Estimate 250 words per page and you will have an approximate number of pages. Plan your book. Get together a rough idea of what the book will look like and the number of pages. Unless you know a bookbinder, you will probably not be planning a hardback volume.
Paperbacks are of two main types, perfect-bound and chapbooks.
This is the ideal, as it makes the book visible on shelves. The alternative for small booklets is to fold the pages and staple through the crease. This works well up to around 50 pages, and is usually called a chapbook. Find a printer. What you are looking for is a small print shop who are used to producing finished work to the standard you need, in small quantities.