Anyone self installed a Winegard SK SWM3 to replace a dome

I plan to use the Dicor just as you suggested. The Eternabond is just to cover the control cable as it runs laterally across the 3' span to the hole running down to the entertainment center. It has to run across the outer shell or inside the coach. I don't want it inside.

I have a friend in my storage lot with an Allegro Bus of about the same era. I looked at his, which was done in Quartzite. That looks like what was done there. The Tiffin tech told me that was about my only choice.