Looking for Matching Model Train

Hi, new to this whole model train thing due to my 3 year old grandson. We've come to find out many of my wife's ancestors worked with the Union Pacific.  We have a picture of steam locomotive and the engineer is probably my wife's 3d great uncle.  So what I'm looking for is a model train that closely matches the train.  Of course, if it were a Union Pacific loco then that would be best.  The Train is a UP 4 -6-0  (Drive wheel diameter: 61 in and cylinders: 20 x24 in) #1809;  according to the Utahrails.net, the train was built as UPRy 1809, builder number 598 in May 1890 by New York; to UP 1809 in 1898; to UP 1309 in 1915; vacated in 1926. The picture is believed to have been taken in the North Platte, Nebraska UP railroad yard.  O scale; Lionel would be preferred model manufacture.  Thanks, Ken