Hello, picked up a 550 set up to do most pistol calibers. I think I got a deal. Now the learning curve. The dies have a little surface rust on them. What is the best practice to clean them up? Should I send it all to Dillon to go through it all? It has sat for years. I'm a newb and need suggestions. It's all in a big box. Parts I don't even know what they are. Thanks in advance.