Your dealer may well sell a car with tyres that have had puncture repairs, firstly they may not even know and secondly there is nothing wrong with doing that. Some people don't mind repairs, others don't want them. They would for sure reduce the price of a set of tyres if there have been puncture repairs.
When selling you need to give tread depths on outside, middle and inside of tyre as these Bridgestones can easily have 5mm on centre and be illegal on the edges due to uneven wear. Thats something to have a real good look at before you take the car as the dealer may well pass them off to you to save a bit of cash, they won't let a car go out with illegal tread but 2.5-3mm will pass their scrutiny no problem.