OK, I'm back from my self-imposed exile.
The top is the absolute bomb. Seriously. You sir, are the man.
You should dry sump that dude, and exit the exhaust through the body on a slash-cut through one of the rear fenders behind one wheel or the other (like the exhausts on a WW2 fighter). Then fab up a skid plate, and you can you can actually DRIVE it all slammed out like that.