Squadron only bought the ship PE artwork, existing ship stock, and the rights to the Gold Medal Models name. They didn't buy the railroad stuff. Brandon of Squadron doesn't know if it was picked up or by who.
Originally Squadron intended to use the same etchers as Loren Perry was using. However one of the principals of that company suffered a stroke and was not able to fill the orders for the longest time. In the last few weeks Brandon said that he had located an etcher and the products were being produced. It might take a while to get the whole catalog back. Contact Squadron.com and check on your specific needs.