I've ordered a GTI for March delivery and like you I've added high beam assist, camera and car net app because they are basically cheap options.
I originally ordered the tech pack but after some consideration, I changed it to just Dynaudio, saving nearly £700.
I liked the idea of the 8'' screen but have no use for built in storage and a dvd player and a bit more file support.
I'd sooner buy a iPhone 6s plus with the money I've saved.
I think if you stick to the standard 18'' wheels, you won't need the adaptive suspension as the standard ride quality is supposed to be excellent. I also think the Nogaro's look great
Sunroofs are nice but I don't care for the look of the one on the Golf personally.
It's all down to budget and what options are worth the money in the end really.
Whatever you decide to do I'm sure the car will look the business

PS
If I did any kind of mileage the GTD would be my car of choice.
My A3 170 TDi was a beast of a car so I imagine having 184bhp and all that torque would be very nice indeed