I have a chance to buy a 71 240z 1 owner with paper work 90k miles all original. but the car is pretty rusty in the rocker panels and around the trunk seal, the floors aren't to bad and the battery box is still in decent shape the cars been parked outside behind a barn for 27 yrs the brakes are froze up he also said something about the hood being black from the factory is that some kind of special package i asked he said he didn't know? Is the fact it's a documented one owner all original make up for the amount of rust? I also don't believe it would be that hard to get it running and driving, a tune up, rebuild the carbs, new brakes all the way around can i get some feed back, opinions, good buy what do you think?