Okay,
As I am no 'trackhead,' were I to get the Trumpeter loco (shown above) AND one of those awsome rail guns (above too), just how much rail would I need? I'm a die-hard fan of Tru-scales rail and they come in 3 12" sections (36" total). Would I need two or three or more?

Another, is IT feasible that the loco would pull one of these guns? What else would be with this combo? Flak gun, MG nest??? I really have no idea, just LOVE the concept!!!!
Any and all input is appreciated!!!
Thanks!
Mike (++) (++)