We cut in the sides of our gravel driveway with bricks. It makes it look much more professional in our (read: Wife's) opinion. It also helps contain the gravel during the rain.
We use a winegard carryout automatic. I have a mount on the roof that can accept the carryout if needed. Most times the signal is just fine without taking it up on the roof of the RV. What works best for you is like others have mentioned, it is about...