The center ramp is 18" wide, the lateral ones are 11".
I could reduce that axle from 36" to let's say 28 having the tires closer to the choc... there would be some trade in stability... thinking in use angle iron to support the axles all the way could work nicely.
The diameter of the wheels is needed to keep using the same ramp i always used (8').
Fun experiment at this time
