84 Chevy help

[Claytona08]

I found a great deal on a 1984 Chevy C10 today. Found the truck sitting in someones yard. Come to find out this truck is a 1 owner that has been garage kept up until the last year. The interior and exterior is in great shape. The truck had a camper on it since the man purchased it and the bed doesn't have any damage to it, no dents and minimal rust on the exterior. The only rust is a small portion on the front of the hood where it meets the grille. The old man that owns it told me the truck broke down when he drove it home one day but after speaking to his wife that was not the case. Actually he is not suppose to be driving as he is over 80 yrs old and in bad health. He would sneak off in the truck so his son came over and removed the battery from it. The truck has a 4.1L I6 and a four on the floor. I looked at the tag on the fender well that has the vin#, model # and options. I am trying to decipher all the numbers and I am very confused. Can someone help me with this? Oh and by the way....I got this truck for 700$