First time poster--I have an opportunity to buy a 98 windstar lx. It has 73,000 miles. It makes a whirring noise when it is first started and then that goes away. Then it makes a rattling noise in the rear. Almost like there is something rattling around in the door. They want 3500. for it. Body is excellent and interior is good. Would this year with this amount of miles for the price be a good buy? I am leaving for vacation and need toi make a decision by tommorow Anyone? Can you help?