i am looking at an all original 76 hearse . it's got the 500 motor in it showing 76000+ on the clock . it seems to be all there . runs great , no rust etc . can you guys tell me any pros and cons of this vehicle , motor etc ? not being a gm guy , i'm in the dark on this one . that is why i'm here asking for help . what kind of fuel mileage should i expect ? this would be my daily driver the owner is asking $5k obo, is this reasonable ? thanks to all in advance !!!