Get a white GT3 without options like leather, PCCB and PCM. It's a GT3 for god sake. Leather is adding weight and that's against of the purpose of such a car and if you don't track the car you don't need PCCB for normal road use.
And the PCM? In a GT3? Why? Don't add weight to a GT3 man!

And if you want the orange so much, pick the "custom paint" option and here you go ...

One more comment: picking the sport chrono option is a must because is changing the way the car reacts (PASM and TC intervention and engine mapping being the top three that I would mention).