With the tags having expired in 2009 at least you know how long it's been sitting. This might be a great deal knowing it will take a fair amount of up front cash....say 10K for tires, batteries, perhaps belts and hoses, possibly dump and clean fuel tank, all new fluids and that's before even starting and driving it.
If it were me and every thing else visually looked great, I would have a mobile service come out and check it thoroughly. Look at the oil and fuel for algae, contamination and etc than perhaps give is a go starting it.