So here's another chance to show what you have or like. I really prefer modern diesels but I like the steam too. I bought a MTH triplex just for kicks. I had zero interest in it when I saw it advertised. I prefered my MTH Challengers anytime.
Once I modified a few items on this triplex (&installed KD couplers), it has become my favorite steam to run. I think it will pull a tree stump if I tried. It has pulled every car I could get on the rails to stay coupled.