I couldn't resist putting that in Photoshop. Here it is with the rear track reduced 6-8" and the body pie cut.
I couldn't do a lot more with that view. It needs some curve to the drip rail and beltline. But here's a teardrop body on a COE.
The Type II doors have a separable window frame. So you could take that off and add a curve to the opening. In fact, you could bring the rebody right to the windshield header and eliminate the overhang, like a Barndoor bus.