Tensile Structure anchor points

Hey guys, I want to make a tensile roof structure like this, i tried doing it and its fine but how do i get the points to anchor to the top? ive attached the files i worked on for reference! (all containers are internalized)


Thank you!

Kangaroo_Basic.3dm (74.3 KB)
Kangaroo Basic.gh (16.1 KB)

DUPLICATE THREAD:

And the R8 Rhino file is empty and unused, geometry is internalized in GH file.