Blue Ox says 3.5 hours for the base - looking at the instructions I'd believe that.
The Air Force one System looks to me like it might take about the same.
Figure an hour for the lights (probably less, but figure that) and you're looking at 8 hours. A smart shop would give themselves a little extra time on that, so a 10-12 hour quote doesn't seem way out of line.
My question would be is the install price a firm quote or an estimate? If they estimated 14 but did it in 6 how are you being charged? Same with if it goes bad - if they say 14 and it takes them 18 are you paying more?
