NHWG-
First off, welcome to iRV2!
Second, you should add a "signature" to your profile. It contains whatever info you want; most people put info about their coach there, so they don't have to type it into each message. Instructions for adding a signature are
here.
Re: Toad protection. I never owned one, but some folks on iRV2 report positive results with a Roadmaster Tow Defender (link
here). It mounts to the towbar, rather than the coach.
Here is a link to a Tow Defender (model 4700) on etrailer.
I had rear tire splash guards and a rock guards on my two coaches, and still had chips on the front of the toad. Had I been more concerned about that I would have added a Tow Defender.
I suspect that no matter what steps you take some stones/rocks will get by.