Someone hit my parked 850 wagon and put a big dent in the tailgate. The estimate to repair it is about 0 which is for removing trim, pounding out all dents from inside and completely repainting it. Alteratively I have found a used tailgate in the same color which I can get for 0. How difficult is it to remove and swap a tailgate? The glass on the used tailgate is better than my original glass. The original glass seems to have some light scratching at the top from the windshield wiper.