I have a 2 year old son that loves trains. I am planning on redecorating his bedroom and want to put train track around the walls as chair rail. I have looked a little bit at the different "sizes" of model track and think O is about the size I am wanting to use. I haven't measured his room, so I don't know how much track I will need, but was wondering if someone could recommend some good places to try and find the track. Since I will be attaching it to the wall, it doesn't need to be in working condition, it just needs to look good. TIA!