You can get the covers at just about any RV / Trailer store. I actually like how the plastic ones let in some light, but I learned the hard way that one bad hail storm can damage the car inside the trailer, not to mention it pummeled the heck out of the trailer. I had to replace both rear brake/turn signal lights, and all the running lights reflectors on the drivers side of the trailer. I have not checked out the AC unit. The cover is toast, and the condenser is pretty well smashed too. I think it may be easier to just replace the entire unit than try to piece part it back together?