My camper has a similair front setup as standard and I have added the Stonestomper for additional protection. Its amazing the sheer amount of "rock spray" that you can see in your mirrors coming from under the vehilce and camper.
But even with both sets of protection, the underside of my camper looked like it had been hit with a sandblaster. The suspension swingarms have been stripped of their paint coating and its obvious everything underneath has been sprayed with gravel. But everything has metal stoneguards or some form of protection so no damage.
The point being is that even with all that protection, there is still a huge potential for damage and the components need to be up to it, as they will be hit if you travel on gravel roads. Any exposed plastic pipes will need protection and unlikely to survive if in the line of fire (without shielding).
Cheers
Captain