Welcome to the forum Elias, you'll find the members on here are a friendly and helpful bunch :)
You'll definitely see an improvement on acceleration and bhp compared to the 2.0 litre.
The tech pack is a personal thing but I know it is very desirable and most that don't get it wish they had.
12 weeks is ages! I bet you'll be watching the build tracker like a hawk!
Cheers
Steve