It depends on what you feel like cleaning and how much time you want to dedicate to cleaning it. It also depends on what kinda customers and industrial accounts he has. What does he have in his inventory that you have been eyeing up if you don't mind me asking? Remember you are competing against the chinese for motors and wire and they are paying 2 dollars or more for high recovery insulated wire and over 60 cents for AC motors and a 1.25 or more for DC. I don't pay attention to prices to much because non-ferrous material is my enemy at work ferrous is how I make my money. I laughed though when they told me how much they were paying for copper 3.94 for barebright. WOW. You also might want to just try to buy something from him that he has a good flow of it coming it in and buy a single piece of it and find out how long it takes to clean it and weight up every single piece and figure out how much you would make from buying a gaylord or truckload and then you would know how long it would take you to clean and how much you would make off of it. Just a thought as to where to start.