Yep thats where I got them. 4" on the track decals and 8" for the numbers. Be warned, they take forever to ship. I think it was 5 weeks total to get mine.
From what I heard, the mt cars get the better stuff. So bigger rear brakes. They all get the same fronts. Stock rotors are just fine for track duty. No need to upgrade those. Just get better pads and fluid.
I have had my whiteline sway in for over 2 years and 10k miles. Had my front suspension all apart a little over a month ago and the bushings were still fine and the bar rotated as it should. No issues here.
edit - just wanted to add, when I added poly bushings to my jeeps sway and motor mounts...
In 8 more days, I will have had my Supra for exactly 3 years. I only have 12k miles on it. I am actually jealous that you get to use yours so much. Would love a supra as a daily but can't afford 2!
I think this whole insurance thing comes down to who was at fault. Obviously, if you get hit and the other person is at fault, their insurance company really cant say anything about your mods since you dont have a policy with them. However, if you were found at fault, I doubt they would be...