I am just starting with big scale trains.. the G-scale. I have a room 16X20 and would like to have a train go around near the ceiling.. the shelves will be no problem to install.. but what do I need in regard to a train that can go about 72 feet.. i would need 72 feet of track.. and I like the G-scale trains that look old fashion.. I like the White Christmas Express or the Plainsman.. can these trains run that distance? Can I get both and space them just right so they both can run on the track? I need help to know what to do and get started.. can anyone help me out?? Thank you so much... ~ray  "perenoel"  :-)