I didn't time myself like I usually do when I do car projects, but it took me somewhere in the ballpark of 1.5 hours doing it for the first time (i.e. super carefully). Now that I know my way around it and have some familiarity, I could probably do it in well under an hour.
1998 BMW 328is
1966 Pontiac GTO
2007 Subaru Impreza 2.5i 5-door
View my photos: Caught in the Wild