I made some roof rack brackets for my old Tercel and non-Yakima racks. Worked great for years and years. Yak (and probably Thule) do make pre-bent brackets that you can buy and bolt on as well - the intended use is for pickup camper shells, but they'd work fine on a MV. You just have to be willing to put a few holes in the sheet metal. I came close to doing this with my '99 Quest but I had a friend who sold Yak stuff so I got a deal.
Everyone else, there's an interesting letter and reply in August's Letters to the Editors.
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