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You can check on TheSamba.com and look at other vehicles in your area, or in other areas of the country. IF you are interested in selling it, you can post it on there, and use their classifieds to get a pretty good judgement of reasonable asking prices (since they will vary depending on your area, here in the Pacific NW they are plentiful but in Florida I have heard they are rarely seen.
I would advise that at least getting it into running condition will be the best way to maximize what you can get for it, though maybe at that point you'll fall in love with it and decide to keep it!