Great job Lamonte! Sometimes these problems are well buried. Good to know that in at least one case, a cable could be pulled to feed a new one. Whenever I have looked at a cable and thought pull it and run a better alternative, seems like a no go.
These coaches have had some of the worst RF cabling habits I have seen. Sometimes as a work around you can cut signal losses where you can get access and boost the signals. Huge improvements can be had by finding the "hub" of most of the RF cabling/distribution, usually near the antenna booster power source, and replace all the RF splitters with a good inexpensive multi port RF amp.
It also gives you the chance to label some or the RF wires. In my case from the first rats nest photo to the last photo...I went from about 4 marginal OTA channels to about 15 decent ones where I live. The long cable runs, like the bedroom TV now has the same signal as the living room TV. The Amp is available on Amazon, great results for a partial day project....
Lamonte, thought I would add this info to your post, between a better antenna and the right distribution amps there is potential for a really good OTA system in our Beaver Coaches.
Later Ed