I am posting these for Jack but thought someone else might want to see the measurments.
Jack,
Here are the pics I took.
I measured my body and it is 47.5" wide at the widest spot and as you can see in one of the pics the body over hangs the frame by almost 2" on each side.
Note that the pipes are short so I dont have the fastned to the frame and they are on a angle as is the motor.
I have seen longer ones that come back to almost the rear tires on a3W and they fastend them to the frame and that pulls them up off the road about an inch.