well in that case, maybe you are better off replacing the brakes and rotors, new suspension. while you are there, replace the bushes.
the interior would be on the way out by now as well, so order new plastics, seats and carpets.
seals around the windows are getting a bit weary, and you don't want them blowing out while you are doing a 300kmh plus pass down to the local shops, so replace them, along with basically anything else that is over 12 months old...
maybe just buy a new gtr...?