Blind Bruce:
In re reading these posts, I am STILL impressed. May I ask what was used for the lights? They do not appear to be LEDs.
All the lights were 1.5 volt bulbs made by Minitronics
An Outdoor billboard sign Lamp like the one below was used in the office
http://www.walthers.com/exec/productinfo/475-7200702
Old fashion lamp shades with bulbs were used inside the main engine bay
http://www.walthers.com/exec/productinfo/475-7251203
All of which are supplied power from a single AA battery that is hidden inside the super glue top that is made to look like a boiler
the wires go up the boiler smoke stack to the rafters