I second the editing suggestion. You need an outsider who can look for plot holes and tell you when things don't make sense. Also one who can make sentences more concise by chopping out superfluous words.
I would suggest going the "book on demand route." You don't pay anything up front, and the books are individually printed at the time that the book is ordered rather than printing thousands of copies at one. Focus your time and energy on marketing the book rather than focusing on finding a publisher who may or may not bother to market it for you and who may or may not be able to get it on store shelves.
*edited to clarify what "book on demand" means
I second the editing suggestion. You need an outsider who can look for plot holes and tell you when things don't make sense. Also one who can make sentences more concise by chopping out superfluous words.
I would suggest going the book on demand route and focus on marketing the book rather than focusing on finding a publisher who may or may not bother to market it for you.