Just a quick tip here, I had some wind buffeting issues with my bikini top so I straightened out some coat hangars, cut off the spirally part on the non hook end, and then stock one down each side of the rear seam. So far it's worked out great! It's been a couple days now driving on the windy Texas highways with no buffeting!
As you can see, the coat hangars overlap a bit in the middle adding strength:
I also cut some slots in the roll bar wraps so my grab handles could fit through!