Having recently had the brake upgrade done on my GTA I retained the parts that were taken off the car. Are these worth anything? I have all the parts; calipers, discs, pads, brackets and pipes (I had braided hoses put on). I assume its really only the capilers that are worth anything. I've seen afew on ebay but it never says if they are 305 or 330mm. Any takers? They look in good condition to me.