Ok so I am about to work on a route from a abandoned Railroad. The only problem is that RW3 just has UK stuff. So I need some USA stuff but I don't know which sites to use to download the stuff! I need the following items below in red

Signals
RailRoad Crossings
Some cars wil also be fine to.

So I need those items for my route and might upload my route to Train-sim.com

Also the requirement for these things MUST be free.

Thanks!