I bought one off eBay. It showed up in good shape, and I saved a couple hundred dollars for a unit in near new shape. They are pretty simple and should not be a big deal to TS. I would ask the seller for pics of the "fire box" so you can feel comfy that it hasn't been used so thoroughly that the interior is shot. I'm not sure how easy it is to get individual parts, but bits and pieces like stove pipe extensions are quite expensive, leading me to surmise that if you had to buy very many replacement parts, it could add up fast. At any rate, if you can get one for, say half of the best retail price you've seen, I wouldn't worry too much.
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