Trackmaster Knapford Station Question

[Super]

I finally got my hands on one of these Knapford Stations, complete, with both domes, and in excellent condition. Aaaaand...all my strategic guessing (see all above) is actually true, all of it. This station was originally constructed for lights using 3 AAA battery's and an on/off switch exactly where I though. The wiring ran through the chaseway above the clear track number signs where inside there is wiring guides and a place for an LED in each of the 4 signs. I am going to have a lot of fun modifying this baby. I wonder why they scrapped the idea after designing and manufacturing?