I had one of these as a kid, and so did my wife. Only difference is, her dad kept hers stashed away in the basement (with the original 80's batteries!) where mine.... well I have no idea where mine went, but my family was big on rummage sales and moving.
She lived in the same house all her life and her family were hoarders. They didn’t throw much away. Which can SOMETIMES be a good thing.
It was a bit dusty when I found it, but a wipe down and some new AAs and it should be good as new. I tested the ‘transfer case’ and it goes into 2WD, 4WD, and neutral ok. I don’t have the key to turn it on, but a simple screwdrivers works just as well.