Lovely stuff David, I've just had a good catch-up, thank you for sharing it with us.
The Swilly stock looks terrific, my initial thought was that the bigger stuff might dwarf the layout, but not at all. Unless a certain 4-8-0 appears???
Interesting about the Gaugemaster Feedback controller. I found much the same, and now use the standard "W" type exclusively, with ALL types of motors.
All the best, Dave.T