Play with Traincraft in a nomal world of minecraft or the "Model Bahn" map. The map is under construction. In Traincraft you can build Trains and wagons. You can build rails for the Trains and and build them from the new rails or the vanilla rails.
you can build your own rail network and go with your own wood from the forest home or stone from the quarry .... You can also play the map and try out trains there. I also allow you to map the map to a server and play it there with friends.
Do what you want!