Well done Kit. Love that complicated track layout and impressed by your ability to scratch build it. Great idea of using staples as rail spikes. I look forward to the finished product which looks like it will be a good advert for Protocab. Like the clean shiny track and dull rusty track. To emphasis the independence from track power I suppose at some place on a layout there could be a piece of old track that is all covered with plant growth, so much so that you can't even see the track, and have your loco drive slowly over it.