If you are not fixated on the Lionel brand, as so many are, both MTH and Williams make almost exact copies of the Lionel postwar F3. The main difference is that the modern trains have can motors and traction tires. They will pull very well. The Williams has an electronic reverse unit and a simple horn/bell. The MTH RailKing models will have Proto 2 or Proto 3, but will run just fine in conventional mode.