Transferring models at runtime

I need to come up with a way to transfer models while the engine is running. When the download finishes I need to load the mesh in the world.

Now the second part I believe I can do using the new code resource which updates the list of files on the hard drive. It's the actual transfer part that I'm wondering about. Has anyone else done this? I know there is code in there "For mod authors" but is there any working example which uses the code anywhere?