Yea, my cowl is a 8" dia. I was really hoping to find something useable in 1/5 scale. I COULD make one if i have to.
What about using 1/4 scale and trimming down the tops of the Cylinders to fit. You dont see the tops anyway correct? Although i dont know how out of scale visually it will look. I dont want it to look like a way oversized cylinder.