Diamond plate rock guard.

I like the look of a diamond plate rock guard, and it should go well with DP fenders and tongue box. Just a few questions.
1. How tall did you make it?
2. How did you attach it?
3. How did you trim it?
If it helps, I have a Benroy profile.
1. How tall did you make it?
2. How did you attach it?
3. How did you trim it?
If it helps, I have a Benroy profile.