Hi Craig,
Good choice, GTR looks awesome!
I didn't find it expensive at all for maintaining such a weapon of a car, close to 700bhp on stage 4, budget about £1000 / year for servicing. Pads and discs should last you 2-3 years, depending how you drive it and how much you drive it
Enjoy the car and respect its capabilities until you get used to it, it's a serious weapon
Thanks for the advice Adrian. Good to hear first hand from somebody who has been through it with the car. Loving every minute diving it just now. It has alcon discs and MPSS tyres which are all in good order. Also has a full Miltek which is not too over the top. :-)