Wow, yeah. $2k for a "rust free" 390 convertible seems pretty darn good.
Co-worker of mine has one ~ red on red, 390 auto convertible. He drives it regularly in the non-rainy season here (so, like 3 days a year >.>). He was pricing them last summer to see what he could get for his and came up with $14k. Couldn't find any takers for that though, but he didnt' try very hard either.