i bet under the dust the paint is fine. it hasn't seen any sun for 19 years.
a good cleaning and it could look great.
now mechanically, the gas tank is probably gross. seller claims it runs though.
either way, $100 fuel pump and a few gallons of acetone will clean the tank right up.
it will need the normal maintenance stuff. oil change, trans fluid change, brakes, antifreeze and so on.
but really, that's all stuff you should check and replace with a car you just bought anyways.
it will be awesome car for someone with the money.