Help for newbee Kangroo wire cable definitions

Hello Everybody

First of all I must express my feelings about Grasshopper and kangaroo : Amazing work that will change the shape of design architecture and engineering.

As for my need of help. After many times of trial and error I am afraid  I will not be able to master kangaroo without good knowledge of civil engineering. So I am asking for help.

I am on to a concept drawing of a factory shed which I like to design with a suspended cable system. But I cant define any suspended cable system no matter hard I try. Does anyone has any pre-defined grasshopper definition. I can do the rest. I need to define shape of the wire rop, so I can be sure to have neccesary clearance from the ground. here is my pre-design.

Thank for any help