Dave, I think it done snuck up on you too.
The cable I use to make my own, was once sold by Belden in 100 ft rolls to radio and TV stations; that lets you know it's some good stuff; they both demand the highest quality at the cheapest price. Belden no longer sells that cable to the masses. I asked for some replacement cable, and if it was food, the dogs wouldn't eat it.
Fortunately, I'm working on my last major improvement, and thanks to your excellent ideas, I know it's going to be a success.