My cattle panel run has no framing. The steel T-posts hold it in place. I got the idea from Blooie's run. It would require your ground be adequate for it. For example, something too sandy would likely not work.
I never heard of vinyl coated cattle panel.
The key really seems to be keeping the horizonal force in check. I would expect that gets much more difficult if the panels are suspended above ground. "Locked" to the ground, they're pretty tough to move.
I used landscape fabric on my hoop run in the warmer months. It offered shade, let in water, but blocked hard downpours. In the winter I switched to plastic. It took WAY more effort to secure the plastic from wind. The landscape fabric lets wind though, so it was no problem.
Yes, I covered my entire run with hardware cloth and have an apron skirt around the bottom. I'll try and post some pictures. (I'm waiting until I add the finishing touches before I do coop page.) Here's the best I have for now:
I believe Blooie had to move on from keeping chickens and is...
I'd go without any bottom framing. Just some steel T-posts and it won't go anywhere.
This is how Blooie did hers:
https://www.backyardchickens.com/threads/cattle-panel.1140564/page-4#post-17913008
Here is mine:
I'm planning on building a run with Cattle Panels and T-Posts - no frame. I intend to attach an apron around the bottom. This post is my general model:
https://www.backyardchickens.com/threads/diy-thread-lets-see-your-inventions.631861/post-14292536
I have had a 16' panel used as a kiwi...