easiest way to do this is hit up a boneyard for the wireing cuz its a tad wierd the way its setup but you could do it without it tho.
parts you would need is the on off rocker switch. and also the timer relay for it. the timer relay is located on the steering colum about half way down on the passenger side by the ignition switch, it is a shiney metal relay as for wireing if you cannot get the wireing I can lookup and see if i can get you a wireing diagram for it. you will also need the window shocks for it too. unless you can devise a diffrent way to get the wires down to the glass.