Fisher Price Little People 9 piece set

Included in this set is a 1968 Fisher Price fire engine made of wood, metal and plastic. The wheels turn and it clicks and the bell rings.
You also will receive a police car, a race car, a tractor and a wagon, along with the four figures shown. Pluto is not Fisher Price, I've been told, but he's included anyway because he is compatible with the set. Year of manufacture is unknown.
Important: the flaws are as follows- tractor appears faded and has some rust on the metal parts. The race car has two cracks in the plastic connecting the wheels on the bottom. The people have some abrasion marks, especially on the black lady and cowboy. The fire truck ladder appears to be somewhat warped.
I have attempted to clean all of them to the best of my ability and they don't look too bad.