Good timing on this post as I am trying to figure out how to hang my Revo up in a similar fashion. I would love to see some clear pics of how you have the rope connected to the PA. Looks like a custom bracket of some kind, but can't really make it out.
I was thinking about using double nylon straps to hold up the Kayak and a hoist to give me a mechanical advantage when lifting it into the air.
Anyone else hang their kayak and want to share some photos?