I damaged one my air conditioner covers....took it off and taped it back together on the inside. I have painted all my covers to match the coach so it was no problem to fix it. It's on top of the rig so you can't see it anyways.
When you replace the cover, or fix it, I recommend putting a rubber washer where the screws attach to hold it in place. Mine were cracked around that hole as it's thin plastic.
The covers for the air conditioner are about $120.
I have also replaced a couple vent covers after a tornado went through our RV park one night. Fairly easy to replace after you get the right size.
You won't hit anything with those again...trust me.
2004 Monaco La Palma 36DBD, W22, 8.1, 7.1 MPG
2000 LEXUS RX300 FWD 22MPG 4020 LBS
U.S.Gear Braking System
Criticism is much easier than craftsmanship.