1990 Pontiac Sunbird Need to find out a ballpark estimate o

Recently, my vehicle had vandalism done to it. There was a bologna sandwich, as well as almost a whole bag of uncooked rice dumped into the fuel tank. I didn't find out for a few days. I had the tank dropped, but they couldn't remove all the debris from it. I was told I needed a new gas tank, a new fuel pump, the scree filter, the fuel filter, any fuel lines and the injectors/carburetor. What should this cost me in parts and labor? I have to give an estimate to the police for an arrest to be made, but I can't afford to have the vehicle towed in for an estimate. Once I get this filed, I can put in a claim on it. Can you give me any idea of what this would cost, assuming the worst case scenario? I am a student and can't even afford to refill the gas tank at this point in time. Thank you. Annie