I collect 1/64 scale farm toys and would like to get some S scale covered hopper cars (DM&E if possible), some track, and possibly a trackmobile for my grain elevator set up. I have found plenty of HO stuff, but would like to stay with 1/64 if possible. How much smaller is HO compared to S? Is it enough to make a difference? I don't plan on setting up a working train, just for looks in one area of my diorama.