I am looking at a 740 gl wagon. Mileage is 160K but it stopped working in the fall. There is one problem though that makes me cautious. After a rain the driverside front floorboard gets wet. Not standing water but enough to soak the carpet. And the second problem is the rear seal needs to be replaced. Any ideas about the water? The asking price is $2500. but there is "room to negotiate" says the owner.