Falmouthboy

You will soon know if it is a factory build if you are getting a delivery date 10-12 weeks hence. If they tell you they can get one in 3-4 weeks be suspicious. Certainly in my experience they won't attempt to add anything that results in a substantial cost in terms of labour or having redundant bits, so with the complexity of new aerial, head unit, coding etc it's safe to say this won't happen. They would probably even refuse to do it if you asked.