Would like to see pictures of how you are attaching the top of the hoop to the other building/wall.
This is something I'm thinking of doing on our house - to provide a trellis for vining plants to block sun in the summer, die back over winter to allow sun/heat thru to the master bedroom area. We had a tree there that was tiny when we moved in Jan 2015 and "exploded" in summer 2016 & was removed over the winter of 2016/2017. Then summer 2017 hit - OMG. Didn't realize how much protection that tree offered - but the roots were a problem with the foundation, too, so. We are having lots of young seedlings pop up from both the roots & dropped seed pods we missed picking up. We remove them...
In the past, we've only used 2 panels at a time and always attached them together long ways first, then attached them to the base and then raised as a whole. Never thought about how to do this on a larger scale... It was less awkward for us to zip tie, wind string or wire while it was on the ground than while it was above my head. Our oldest cattle panel structures are now about 3 & 3/4 yrs old while newest just turned 3 yrs old. All, so far have only been 2 cattle panels deep.