I'm extremely excited and happy that 3rd Rail is offering this unique train. The RI 1937 Rocket has been in my mind for years now, and to see it being offered is beyond amazing. Sunset states that only 150 sets will be made consisting of the EMC TA and a 4 car set. It also states brass or plastic so I imagine they are still debating it. I would love it if they go the brass route and see Sunset produce a diesel that equals or surpasses their fine steam offerings. I'm sure we'll get more details as the project moves forward (modified-unmodified?), for now I'm incredeably happy at the chance of seeing this unique and beautiful engine come to life in O scale. It doesn't get anymore rare than this! Thank you, 3rd rail!