You should be able to buy those parts that are crumpled and just replace them. I saw a guy start to do this a few years back and he just kinda disappeared. He got like 75% through with his rebuild though. His car had similar damage to yours.
2003 Ford Focus ZX3("FUBARCUS" was "Brokus") - old and still busted
2007 Subaru Impreza 2.5i - current DD