I have an old Thomas the tank train set(Large i think) i got from my grandpa that he bought new for 350.00 dolars about 16 years ago. It has yellow roadbed and a red controller. The engine is red and it has the red coal car that connects to the engine and two grey gondolas(i think they are called the troublesome trucks). I have all of the plastic faces you can put on the engine and cars. The track layout is a simple oval with a an option of going the long or short way around the first turn. I have not had it going for about 15 years. Can this old set possibly be rare and very valuable if it is properly restored to good condition??? I dont know much about thomas the tank so i was just curious. Thanks