IC "Highliners" added

I've added a total of fourteen (!) recently-preserved "Highliner" double-deck MU cars from the Illinois Central's Chicago suburban electrification to the roster. Of those, ten have been acquired by the Museum of the American Railroad in Frisco, Texas for use as classroom cars. They were moved to Texas in early 2016 and are currently in storage, though I'm not certain whether they're at the Frisco site or stored somewhere nearby. The other four cars were acquired in mid-2015 by the Illinois Railway Museum, which intends to retain two and scrap the others for parts. Which ones will be kept has not yet been determined, and for the time being all four are stored on the IRM campus. As of a couple of weeks ago, work had begun on inspecting these cars and making them operational. Car 1534 was the first to be inspected and had the honor of becoming the first "Highliner" to run in preservation (as far as I know, though there are some in Boone that are potential runners).