Sounds like the perfect "N" size layout and your son is going to remember this just like you remember your Dads layout. Great memories. Speaking of memories, please take photos along your construction way to sort of give us a time-lapse of your experience and with your lighting expertise I can imagine lots of lights around the coal mining structures.
![[Image: big-grin-smiley-emoticon.gif]](http://www.sherv.net/cm/emo/happy/big-grin-smiley-emoticon.gif)