My experience with inop RV AC units is minimal but, the 3 times I have worked on them, all they needed was a new motor start up capacitor and lubrication. Does it trip breakers when the AC tries to start?
The newer front unit appears to have been damaged with a low clearance issue, no surrounding stress cracks in the roof or anything but I think that one’s shot. The back one looks vintage and has been dead for some time. I don’t believe either is salvagable.