I can't confirm on pricing until I approach the manufacturer when there's enough interest for another GB run; however, I bet it'll be similar to the first GB pricing. International shipping will on a per quote basis. As a reference, the last shipment to Germany was US$65.
I've never done 240 kph on my car. The longest straight on my track ran out at 200 kph. Now, if I'm supercharged, it'll be a different story. How does the car feel at 240 kph?