My motor is 10", so that's another inch less available on the top.
I think the earlier version of the Metro (Forkenswift) is a little box-ier that the later version (Electro-Metro). My hood has a pretty good curve to it. When working with batteries, boxy is good.
I don't know how different the entire engine bay area is between the two different versions of the Metro.
Also, all this really wasn't that much work. Mostly just welding two nuts to the frame of the car for the end tie-downs. I just make it look like a lot of work.....