I mentioned to my new neighbor that I was unhappy with the job a local radiator shop had done trying to patch the top tank of my radiator. Sloppiest job I've ever seen. The neighbor remarked that he used to work on radiators and would be happy to help me replace the tank. He came over last week and made it look easy.
We took a good tank off a banged up core I had and attached it to the good core after removing the leaky top.