Congratulations on the order - some really good options in there so looks like you've spent your money wisely. I was in the same situation when ordering mine, so had to balance what I needed and what I wanted as any options invariably cost me more than the option itself!! For example if I specced leather, it would cost me personally £3,500 over 4 years for a £1,600 option - madness!!! (and all for something that I'll have no benefit of when the car goes back.
Enjoy the wait for the car - mine is due 1st March and the wait has been agonising - with only this forum keeping me sane.....