1940 Mercury 4 door

Car is in good shape, the body panel that runs from side to side under the trunk and bumper has a little rust on each side. the car seems to be solid, floor pans are in good shape. this car had been setting in a guys barn for years, he said he drove it in there and turned it off, I tried cranking it and it will try to start and then die. I would think the gas tank needs draining and carb and fuel pump rebuilt. it has a flat head V-8 and I know nothing about how to put new points in the dist. he had put a 12 volt battery in it and I think that might have burned the points up--I;m just gussing. I can send more pictures if anyone is interested. I'm asking 6k for this car and right now that is firm price