Wow! That's an oldie for sure. I had a gold pan rc in 1985 or so. Not sure what your planning on doing with it but, I wouldn't get to crazy w/ it.
I'd assume the batteries are dead.
I got one running this summer for a friend of mine. I used a bunch of stock (new rtr) stuff I had lying around.
I would look around for a vintage rc section as well.
WHat do you want to do w/ it? Race? Run in the street and yard?