[mochaccino]

Come to think of it, I'd also be willing to buy just the domes on their own. Over the years, I've seen a lot of systems being sold without the domes on ebay, but it's rare to see the domes sold on their own. I would still prefer to go with first option above, because the domeless systems usually cost nearly as much as the complete used systems, even though there missing a critical and expensive component