My advice is buy the best car you can find , the better the condition & more complete it is the more $$ it will save you in the long run , I would try to avoid cars around the great lakes , they are always rusty , the cars out west are far better . A lot of the parts for 70 are 70 only , so this is why buying a complete car is important , most builds use later 71-74 parts as finding the 70 pieces is difficult & expensive .