Just like the title says what is a good price for a used Miller 252? I mean what would you pay? I want to pay the least but I don't think the guy has 210 electric so I won't be able to check it out. What should I be willing to pay?Says it only has about 100 hours on it. Looks like it is more dirty from sitting in a shop where constant welding and grinding was an everyday thing but I'm not sure. Just looks like that.