I just did the specialty power window one on my Barracuda....bought it from Scotts Hot Rod
Pretty easy with some fabrication...I mounted mine under the cowl panel.......seems to work pretty good when I mocked it up and hooked up the motor. My car doesn't have a windshield right now
My car will not likely see rain if I can avoid it..just wanted one in case and to be full street legal etc...seems like it will work fine...