No Power for the photon light, the keyboard or the motor.

This big trak is the late 1970s model.  Many years this big trak was stored in an attic where the summer heat was very high and the winter was cold.  When cleaning the attic I found my old toy and hoping to get it running again.  It was not stored with batteries.  Could the motor and electrical system be ruined from the years of the heat and cold in an attic.  New batteries, four D and one nine volt and not a sound of movement.  Do you have any suggestions, can it be fixed?  I would like to see it run again or should I take it to the recycling center?