Allthough RCDB's info is usually pretty accurate, they do have odd tendancies to remove and add coasters from the site. I'm not entirely certain why.
Also, from what I've heard, KC's track was more "cut apart" than dismantled. From what I've heard, they cut through the bolts instead of unscrewing each one. Likely because the coaster would be unusable to anyone due to it's metal fatigue. I'm not certain on that one, but that's what I've heard.