Length of 8 pc MTH Catenary Set?

Have you looked up this item on the MTH Website?  What does it say?

I did look it up and tried to find the overall linear footage and came up with nothing, which is odd considering how do you figure out how much you need? I was hoping someone who already had this would chime in..as this stuff is not cheap and I really want to avoid an over ordering situation..I might try calling MTH to find out..

According to the instruction document (See this link) it should cover up to 160" in length. (In a circular configuration.) The set contains 8 masts and 8 x 20" wires.

Thanks much..