Yes you need to season it.At the same time you will be learning about your smoker. If you don't learn to control heat you are pissing in the wind. so to speak. I would start with a chicken for my first smoke. they can handle a big temp swing.
Give it a whirl and see what happens. Look for all air leaks. then seal them up. If you can't control air. you can't control heat. Remember yo post Qview.