I would echo Quick Casey's remarks. If you are interested in purchasing an Electroliner or Zehpyr, you maybe better off seeking advice in the traditional O gauge 3-rail or scale forums rather than Tinplate. For example, MTH in the last decade has produced several electric and diesel-electric streamliner trains in plastic. MTH's production in 2007 of a 4-car North Shore Line Electroliner and their just delivered (January 2015) articulated 4-car Boston & Maine Pioneer Zephyr are two excellent MTH examples but both are made of ABS plastic not tinplate. Lionel's 2014 catalog included a reissue of their diecast Lionel Zephyr, this time upgraded with a Legacy control system, but I would not call this "tinplate".
In O gauge "tinplate" MTH (Lionel Corporation Trains) has recently produced several streamliners. For example, they made two versions in different paint schemes of the articulated "tinplate" Hiawatha streamliner but these train sets are powered by steam engines and not the electric or diesel-electric engine you appear to desire. In electric and diesel-electric streamliners, LCT has recently produced several Union Pacific City of Denver sets in three different paint schemes including silver, green, and yellow. In fact, you can still order online directly from MTH the three-car green or the four-car yellow City of Denver sets.
Bob Nelson
