molded front cap - rock protection

I just have regular mud flaps on the rear of my truck. I do get dirt and bugs on the front but no dings. I think, if we were going to travel to Alaska, I would put some kind of rock protection on the front.

There was a member some time ago that did go to Alaska and had extensive protection done to his travel trailer. He posted some great pictures also. If I can find it, I will provide a link.
Barney