A dent like that can almost always be sucked out with an ordinary toilet plunger and some soapy water. The paint can be rubbed out. Don't forget tax, license and title fees, and smog certificate (don't buy it without one) and then there's insurance. There goes your budget.
Couple grand. Bad spot and a good repair and good paint will cost you.
it is in the door jam
maybe $2000
I found this used car for a cheap price but it has a big dent. I don't want to buy the car and have to spend hundred or even a thousand dollar trying to fix the dent because I have a limited budget. I live in California.
http://sfbay.craigslist.org/nby/cto/4441920365.html