I've got a question, who is making this track for Big thunder mountain? For that matter, Who would make it for space mountain? Would Disney themselves make it out of discrete components and do all the welding? Or would they contract with a coaster manufacturing company to make the track? If it took a year to retrack inn Disneyland, it sounds like they did it themselves out of discrete components. I wouldn't think that it wouldn't take very long to cut up the old track and then bolt together all the new track. I've seen amusement parks assemble all the tracks and supports for a steel coaster in less than 3 months.