So I finally got her done. Its a Vision Pilot Challanger thats had the ash pan leds replaced with blue, to simulate cherinkov radiation. Signs were added, the dyamo will be the steam generator blowdown, the injector portion was sealed off. The tender coal load was removed and a "telemetry" module was added, I may install a pair of blinking yellow leds on the module roof to indicate when the reactor is critical. The chessie car is the reactor chemistry lab. I may make the other 6 cars into a Rickover Express, each one with a different submarine name, those i served on and important nuclear subs in history.