Although a smidge on the small side, as you can see in the Sarissa photo above, it is a simple but effective kit and comes at a reasonable price. The horizontal lines allow the card roof to bend but most Quonset huts have corrugated roofing with the ribs running vertically. Judging by photos I have found this roofing was layered so that in effect you do have horizontally running lines.
In other news... Trumpeter's Salute! The jungle and urban tables are all ready to get loaded into the pickup; I head out the door in about an hour and 15.