Replying to How much money should i ask for?

To make a long story short some douche bags slashed my friends tires a couple nights ago. The cops were to lazy to analyze the security cam footage so i loaded it onto my computer and pulled some still frames out and burned a dvd with enough evidence to prove who owned the car (bumper sticker, dent in the side, etc...) now they are going to court and i am going to make an invoice to take to court for damages so the bithch that slashed my friends tires will also have to pay me for putting the evidence together to land her in court. I am thinking like $200, should I go higher?