Not that long. Glueing the lid back together took about 10 minutes plus a day's drying time. Repairing the hinge, just a few minutes to drift the pin out slightly, fold the hinge back in place and drift the hinge pin back again. The longest part of the leather restore was actually mixing the acrylic paints to get as close to the original shade as possible. Then it was just a case of touching up the scuffs and using a finger to spread the paint evenly to blend it in. Touching up, took about 20 minutes. Once dry a couple of coats of hide food plus buffing out took about 5 minutes each.
So, overall working time was no more than an hour, maybe a shade over, all spread out over a couple of days to allow for drying times. Not too onerous realy, and not much real skill needed either. Just a bit of patience and a little knowledge on how to treat leather - been watching Susie on 'The Repair Shop' to gather the knowledge needed.