First entry, first crazy idee. But I agree with most here... you're going to have a verry hard time fitting it all into that tiny tiny car! Perhaps the easiets way is to enlarge the car? Make it a little bit wider and longer in the places you need it...Of course this is against the principle of colin chapman. He wanted the lightets possible car with a just strong enough engine. But then again, there are no limitations here!
edit:
I've posted it on the main group build threat, but I'm going to repeat myself. Why not switch the driver and the engine? You put the driver in the front of the car (his feets where the radiator would be) and the engine where the seats would be et voila: a singel seater, midengined, trackdaymonster. Not sure about crash safety.. ;-)