Okay after examining your third photo again, I see that a previous owner applied black protective material over the lower front of your camper. You can leave that as it is, or remove it and repair as follows (and the damaged area in front of the door as well):
- Repair the body damage by grinding and cleaning out any holes that go all the way through. Patch holes with fiberglass cloth and resin, then smooth with fiberglass filler, and finally a fiberglass fairing compound. There are many videos on this topic, e.g., at BoatworksToday on youtube.
- Apply
paint and a anti-chip coating. There are many different types of anti-chip coatings. For a small area such as by the door, you could apply SEM 39793 Heavy Texture Chip Guard or the 3M equivalent BEFORE
painting.