I bought my GTD from England too. All the local dealers were quoting 4 to 6 months delivery times, found out agnew mallusk had one in the showroom. They wouldn't shift as far on the discount as I wanted, another 2% or so would have done it but they thought they had me as they had a physical car. They seemed pretty shocked when I walked out, came home and ordered a car that night in England from the dealer on here who are forum sponsors. Went really smooth, the car was on its way to them and it arrived with them about 10 days later. Rather than go myself I got a transport company to pick it up, they collected it on a Thursday morning and it was sitting on my drive by 5.00pm the next day. All very smooth and easy and a great price. Had a warranty issue in the early days which Edwin May were more than happy to handle so that went good too.
Go shopping across the pond seems the message for a good deal and use something like Carwow to see what you should be aiming for.