I think a nice addition to the UP Fleet would be the classic and legendary Streamliners. The Streamliners include The City Of San Francisco, The City Of Los Angeles, The City Of Portland, and a few others. The City Of San Francisco and The City Of Los Angeles traveled over the Sherman Hill as well as the Wasatch Grade and could travel up to 90 MPH! They were often hauled by EMD E6's, EMD E7's, EMD E8's, and EMD E9's. I think the UP Streamliners would be an excellent addition for the Sherman Hill route, or perhaps the Wasatch Grade route. Or perhaps, it should be included with another route set in the Transition/Early Diesel Era.