If you're interested in seeing what the actual line looks like, my photos are at http://benkelly.fotopic.net/, and you can find many other people's (including ones dated back to the 50s and 60s) at http://ffestiniog.community.fotopic.net/. As far as Trainz goes I'm not sure this thread will generate much interest, I posted some Ffestiniog shots to the narrow gauge screenshot thread and didn't get any responses.