The year is just the publication date of that particular script. It does not refer to a production at all, just that you should use that version of the text. Your directorial vision is what you make up and can be as imaginative as you like.
Get Smart is a great idea. Anyone who thinks ATB is depressing: Wake up and smell the napalm! Try living through WW2, if you weren't affected by that huge event you should have been dead. Absurdism is a way of coping with catastrophe, where laughing at life is the only reasonable enlightened...