Im thinking of buying a 61 impala ss wagon with a 283, low original miles, clean solid body and all original car but im seeing these valued all over the place. Nada values are over $55k average condition but it doesn't look like they're bring much money with online listings asking prices??? Well i dont see any exact year ss but similar years, non ss ive seen 1 or 2. Interior is in good shape too, 2 owner car. Can i get advise? Is this a good or bad deal at $30k? Thanks in advance for all your help!