I just picked up a Weber Genesis Silver B from Craigslist. I have not looked for a date code yet but I know by the thermometer location that it is 2000-2003. It is in great shape (8.5 of 10). I am replacing the grates and flavorizor bars. It came with a half full tank and a cover. Can anyone tell me what this is actually worth. I am thinking of re-selling it after replacing the grates and flavorizor bars.