The SP had coal Vanderbilts behind some 2-10-2s. However, with the exception of the smaller 9000 and 10000 gal tanks, the UP and SP tenders are vastly different.
I have one each - Lionel and scratchbuilt. Except for that sand dome and the wheels/couplers, the Lionel is a spectacular model. I have never seen a photo of the real thing with a boxy sand dome.