a) OP, this is a very stupid way to waste your money
b) do it, faggot!
You might want to look into "Feldbahnen" (apparently, there's not even an english word for it), which were supposed to be cheap, quick to setup and remove (witch changing production in clay pits or forrests, in the age before the automobile) and simple.
https://en.wikipedia.org/wiki/Feldbahnfor me, that would certainly beat having some fake ass Disney locomotive without any real purpose or history. Plus, those old diesel engines look quite amazing too.