LGB never offered kits of engines. They used to offer a few building kits that were made by a 3rd party vendor and sold in Lehmann/LGB boxes. Aster makes expensive live steam powered kits. Roundhouse Engineering also makes them(highly recommended for live steam beginners) along with Regner. LGB's engines due to the plastics they use, are all screw and slot assembled with little to no glue. They seem to hold up the best to extensive use, both indoors and outdoors in the sun. My track on my outdoor railway is 100% LGB along with most of my non live steam engines and rolling stock.