Hey Niran, I was a victim of a rock thrower too...(it happens everywhere) I was fortunate enough...but he wasnt...to have caught the perpitrator, seconds after the rock was thrown with a piece of down-change and handbrake work that I am still proud of!! After a short wait, I recieved cash from the guy after I provided him with a quote from a local panel shop. I am lucky enough to have my car still in a standard colour (white), so not long after recieving $830 odd dollars from this piece of snot, I rang around some import wreckers and found that an empty door, emptied of all electrics, glass and trim was going to cost $110+$11 freight! Boooyya!
Time to respray that chipped front bar, change rim colour and cut and polish the whole car!!!
Moral of the story-->Check out wreckers for a new 2nd hand door, it will end up cheaper if you can find the same colour.
..oh, and be handy with your handbrake!