I had the oil cooler fixed on Friday. I dropped it off at a local radiator shop called Manley Radiator. I bought the fuel tank parts and crush washers for the oil filter. The second bung on the oil cooler is also now welded. I have the car back together and all seems well right now. The gas tank still had a bunch of surface rust even after having it dipped but all the loose stuff should be taken care of. Also the oil cooler seems to be leak free.