Dude, it's not straight math. You have to explain all sorts of shit - but yeah, for someone who does this exact thing regularly and has to come to your classes prepared to answer all your quetions, it shouldn't take long.
I have to say, you might want to abort trying to get someone to do it for you. You already spent your chance with your teacher - this is your second chance from what you say. I would do it my man and hand it in. Get the credit.
The smart thing to do here is to bite the bullet, get 'er done and put it the fuck behind you.
I'm kind of getting the impression from you though that you will be learning this lesson the hard way.