Oh boy I just got mine in the mail and not sure if I should risk putting them on but I feel confident and able to do so. It says it should only take an hour
Trust me, there is no single person in the world who could do it in one hour. It's a 1-2 day job solo and a full day with a friend, depending on how many issues you have. It's doable with jack, stands and a LOT of patience but it is not simple.