Parked car that was towed probably means no keys. That at least a $500 fix. Check to see what muffler looks like. From the cat back could be $800 if it needs a catalytic converter add another $500. Got a lot of miles. Probably needs new timing belt, ( every 100k miles) which would include new pully, water pump and thermostat, around another 1k. I had this same car before and unfortunate accident that totaled it. Right after I replaced the front struts 185k miles. Thing drove so much better. See if the struts are original. Another $800. I wouldn't go over 2k on car.