Over the summer I inherited a trio of Rivarossi steamers, a heavy 4-6-2, a light 4-6-2, and a light 2-8-2. All three have oil Vanderbilt tenders, the Pacifics have rare Dimi-Trains tenders and the Mikado has a Bachmann tender. These tenders are correct for Southern Pacific steam. Fast forward to last night....I decided that I am not one for stewardship of someone else's freelanced railroad. I decided that I need to make these locos look and feel more So-Cal, and I started to do some research....now here is some truth, the SP never had any USRA locos. NEVER. I was reading the list of Southern Pacific 2-8-2's, and some came from the purchase of the El Paso and South Western in 1924....hmmm.....started to read the list of original owners of the USRA Heavy Mike's...the EP&SW is on the list! Do I have a prototype to model? Is this a simple shell swap? Time for more research....ugh....the Great Northern bought all five of them in 1920. Back to the drawing board.